He’s definitely wrong in that v2.5 is darker than v1.0 - there’s a couple of scenes in v2.5, which are a bit darker, because from what I can tell from the 35mm LPP print and Puggo’s 16mm print, they were originally darker but generally v2.5 is definitely brighter and has less crushed blacks.
Actually, here’s a comparison gallery showing v1.0 vs v2.5:
For best comparison, I recommend downloading the whole gallery and viewing it in full screen mode in your image browser.