I think Wormerine brought up some valid examples of systemics that had an impact on the whole game, not solely Act 1.
That I flat out disagree. IMO best changes in EA, were related to systems and gameplay and those affect the entire title. If things like disengage on jump, disengage as bonus action, advantage on high ground and backstab, automated reactions, hotbar-only UI and many, many other stuff that I am sure people mostly forgot existed by now were shipped with 1.0 BG3 would be a much, much worse game...
All of those were heavily advocated for throughout the EA. I've been there, I've seen it. Those are also not the ones in question up until today, that pretty much means they are universally perceived as better alternatives to what we had before.
Regarding the nature of your argument, I agree with Wormerine that it seems to be quite pointless. Naturally, it is easier to give arguments that favour a fence sitting pov, rather than arguments that prove a concrete statement. You can't also disprove a concrete statement with an ambiguous argument or with a claim of the lack of evidence. 'We can't possibly know' is not a particularly solid foundation for growing a discussion and not a very constructive way to dismantle any possible argument.
