Thanks for the reply here.
I guess I have some perspectives on a bunch of this. I'm for open sharing of academic work for all (but I'm not an academic, so my perspective is a consumer), so inferring your perspective here I think we agree on that. I maintain many open source (MIT/Apache2 licensed) libraries, and I've also worked in big tech (Amazon, OpenAI). I believe both in the idea of collective commons but also in the ideas that there should be the ability of people to sell software. There's tension in that social contract similarly, and it gets more complex when you look at copyleft.
I guess I'd be disappointed if this was just allowing big labs access and not more broadly allowing access to the ACM library for smaller open source models. Very much in agreement with your last points there.