Methinks the poster doth protest too much.
My point is every time something is asserted about the OS movement that "fixes" the problems with modern D&D, you get about a half-dozen people who argue that's not really what the OS movement is about and they don't do it that way. The notion that combat is a fail state, a statement that OS players are making about themselves, has been met with "well, they don't actually mean it the way you're taking it". Or that people crow about how they don't use formulas like CR to create balanced encounters but then insist every encounter they have run has been fair regardless.
I'm not arguing that modern and OS games aren't different. I just think they are less different than the OS movement says they are. Especially those who are avoiding the sins of the past and avoiding gotchas, using appropriate challenges and telegraphing important info the PCs need. Guess what, modern D&D players have been doing that for a while too.