What an interesting thread to float that particular theory in. I guess Capcom with all their internal documentation couldn't accomplish what two talented and dedicated guys are doing as a labor of love. You know, because Capcom is surely bleeding money on RE4 and the roughly bazillion lukewarm ports they've released of it, and I'm sure they could
never find a way to monetize a thoughtfully revamped version of one of their most successful games by re-releasing it across a slew of new platforms.
No, wait. That doesn't make any sense at all.
Anyway, the work in this thread far exceeds anything Capcom would be doing with the textures, even if they weren't just resting on the laurels of creative visionaries who have long since moved on to greener pastures. I'm just glad that people so on point have taken it upon themselves to faithfully update the game with an immaculate eye for detail. It's really something to behold, and we're fortunate to get ongoing glimpses of the process.