Which printer model and what paper? I've reported on a lot of this and some of it is indeed impressive. But quite frankly, you can get the same from the new generation of Epson printers too. It depends mainly on the paper and the inkset.
Yes I read your various reports Mark, and thought "Oh that's interesting, good blacks, higher DMax" but it was abstract, and meant little.
But when it was in my face, it was clear there has been a dramatic step !
The photographer wasn't displaying them for this reason, it was me who had to ask.
Don't know the specific printer, I imagined a Pixma-Pro, but that's a guess.
Paper was an MK by MOAB, that's all I know.
(oh, and for the record I've owned Epson printers plus a 44" Canon, for 14 years, from 17 to 64" and make my own profiles, etc, so am not a newbie to this)