This is indeed an interesting camera as an MFD alternative. I went from Canon to MFD as a DSLR alternative, so it's natural that you look back when improvements come in areas that made you go to MFD. For me it was mainly two things, 1) resolution, 2) lens movements. It was not dynamic range. I happen to like gray skies
. After I got MFD I've learnt to appreciate other features like distortion-free lenses and I've fallen in love with the old-school workflow and the mindset you get when you have a slow camera.
I don't deny though that dynamic range can be a game changer for some shooting styles, we tend to look at our own little box and think that everyone else should shoot like ourself and appreciate the same features we do, but people have all sorts of different shooting styles and tastes which means it varies which aspects that are important. This new Canon seems to be really good in virtually all aspects except for DR where Canon still holds last place in the race, so it's natural that aspect gets most attention.
I already have a Canon system with some nice lenses including the TS-E 24 II, but this new resolution increase won't be enough to make me go back using it again for my landscape photography. I have seven lenses in my MFD system 35 - 180mm, all with plenty movements and tilt and swing and good to excellent corner-to-corner sharpness. Canon's lens lineup doesn't have that. When the TS-E 45 and TS-E 90 gets updated it will look better, I still won't have the flexibility of my Techno+Digitar system, but maybe flexible enough and sharp enough. Moving from seven to three lenses won't be great, but well, you can always crop.
From my perspective tech cameras are moving in a boring direction, they're slowly becoming like a "large A7r", more limited movements, retrofocus lenses, all being about sharpness and resolution nothing about retaining the "large format spirit", becoming more and more expensive too. I won't be getting an Alpa FPS with Digaron lenses, if my current Kodak is the last sensor that can shoot true large format style lenses this is probably going to be the last MFD back I own, and then the next landscape photography system is most likely going to be a Canon system for me, or maybe mirrorless of a different brand with adapters to Canon lenses. I hope though that MFD makers will make a fantastic save and actually start making a back which makes the unique symmetric lens designs possible again. As it seems that's entirely up to Sony now though.
Although I'm sure Hassy H and 645DF+ are great systems for studio and fashion photographers, my interest in them is very weak. I wouldn't use such a camera for landscape photography, if I can't have movements the robust Pentax seems more suited then (and better priced), and in fact I bought my Hassy H (I wanted its back) from a landscape photographer that switched to Pentax 645z. Canon has movements in the TS-E 17 and 24, and although it may take some time they're likely to update the 45 and 90, so in terms of landscape photography with movements Canon is in the front-line behind the tech cameras, from my point of view that's their main strength.