They sort of addressed this in the documentary, implying that for John Lennon, The Beatles come second to Yoko Ono-- he was upfront about this and everyone was aware of this. If it's a problem for the band, then he'd just quit, and that seems perfectly fair, if you ask me-- nobody owes anything to anyone. That said, it didn't seem like anyone actively DID have a problem with it. Seemingly, there was no sign of anything remotely disruptive until a guilt-ridden McCartney needed a convenient deflection in front of cameras.
This notion of "simping" and being "p-whipped" just seems silly and childish to me in general (similar to "snitches get stitches", it really just feels like widely accepted propaganda designed to checkmate someone into always benefiting a certain side, to me). People should really just prioritize whatever they personally and ACTUALLY value more, without a care for such meaningless conventions.
If anything, to be a bit harsh, I'd be more likely to view a guy as pathetically insecure and "c-slapped" for doing (or refraining from doing) something for the sake of appeasing some imaginary guy code. It's weak to care so much about what makes you look weak, IMO.