Heh. Not wanting to step on anyone's toes, and I have no real opinion if the ps5pro update could deliver all the mentioned/sensed improvements (then again, we're talking PD here, and I would think it highly likely that they do have some improvements added in code already, if not even conditionals set for the pro console already (as a Sony studio, they will have had prototypes of the pro dev kit for yonks...).
But - all these hype statements I feel / it seems / I think remind me a lot of the audio coded / high end audio wars of the last 2 decades (where the only half way sensible proof in the pudding is blind A/B testing - which is a tad more difficult with a ps2vr HMD than a stereo audio source...
I'll try to restrain myself from buying and jumping on the hype train ... As you might've guessed...