True, and those firsts were impressive but Fuji and Hasselblad were the first to offer this sort of camera and that is what is relevant today.
Since the X1D and GFX launched we've sold
more XF kits than in the period before.
More companies doing more things in medium format raises interest in medium format. Since P1 has the most complete and powerful full-frame 645 solution (IQ back, XF body, Capture One software, wireless control and review, leaf shutter lenses, professional dealer support, wide rental availability, digital tech familiarity, training classes, rapid service, 5-year warranty) so they benefit enormously from that increased interest. In other words, when it comes to medium format, a rising tide lifts all boats big and small.
I love board games so an analogy would be that there are lots of recreation activities; the fact that we are in a board game renaissance with lots of companies selling good board games is helpful to every company in that market. The enemy of a board game maker (Phase One) is not another board game maker (company raising interest in medium format) it's video games or movies (small format cameras, iPhone). It's not a perfect analogy, but maybe it's useful to explain the market dynamics here. Fuji making the GFX helps P1 sell XF bodies. Not the opposite. To make it less an analogy and more direct: we have had numerous people schedule appointments to play with an XF in our NYC and LA offices over the last year, who called specifically because they were exclusively small-format shooters who started looking into medium format solely because of the GFX but once they started researching found Phase One and wanted to see what the difference was before they bought the GFX; some of those people bought GFX and some of them bought XFs, but
none of them would have even thought to look into medium format before the GFX. So many people wrongly assume "costs $50k" and are genuinely shocked when they find they can buy a Phase One kit for $10k. Phase One is a very small company compared to Canon, or Nikon, or Sony, or Fuji; they can't reach that many total users as those companies do.
This board is full of the people who have been steeped in medium format for, in some cases, decades. It's the new users that grow the market. It's precisely those users this medium format renaissance is bringing in. It's freaking great. I talk with someone every week who is being brought into the world of medium format, and is talking to me (a Phase One guy) because once you're in that world (whatever brand piqued your interest originally) you take a look around.
Between this huge increase in medium format interest writ-large, and the enormous amount of money Phase One has funneled into R+D projects (those that have already manifested and those that are yet to come) you really couldn't have picked a worse year to make a seemingly-annual "the sky is falling" post.
Mirrorless cameras with a 1.3x crop medium format sensor* are a more recent camera category to be born than mirrored medium format cameras. But saying their advent makes all medium format cameras with a mirror irrelevant is, well, silly. I'm very glad this nascent category exists. A lot of great things can be done in that category. I'm not at all convinced they all got done in the first couple bodies in the category, but that is usually the case when an entirely new category of cameras is born. But even in their nascent form they represent a great option for a specific set of needs, wants, and budget.
Truly, photographers of 2018 are blessed with many very very good options across a huge range of needs, wants, and budgets. Phase One has laser focus on serving the top of that pyramid; the ones for whom image quality and feature set matter more than being able to fit the camera in their jacket pocket, the ones that, in the film era, shot 4x5 (or 8x10, or ULF) or an RZ or a Contax 645. Some of those film-era users hated every second of using such cameras and did it kicking and screaming because they felt forced by the need for a specific amount of image quality for a specific client or a specific print size. Some of them did it because they wanted the absolute best and were willing to make some compromises (e.g. size/weight/cost) to pursue it. Neither of those mentalities is right or wrong; every photographer is different. Extrapolating from your own wants, needs, and budget is less useful to analyze the total market demand than you'd think.
And for what it's worth, if you're looking for a compact extreme-image-quality camera and autofocus isn't critical then it's really hard to beat a P1 IQ3 100mp on an Arca Factum, Cambo 1600 or 400, or Alpa STC or TC. It's a very different camera than an X1D or GFX and will be much better in some kinds of situations and much worse in others. The difference in image quality is not subtle; the IQ3 100mp provides the best image quality you can buy and provides built-in and wonderfully tactile movements. The difference in autofocus (decent vs none) and EVF (decent vs none) is also not subtle. Again, very different cameras.
*Of the kind with autofocus, an integrated EVF, and SLR-ish handling. As opposed to a Phase One back on a tech camera, which is also "mirrorless" but lacks those things.