Yeah, I lean towards the structure not being the cause of the outcome here (i.e. if you rotated the governance structure of Anthropic and OpenAI, I think the decisions at each would likely stay the same).
If they made that decision and it destroyed revenue, I could see an alternate timeline where a standard C-Corp + board with non-founder control may have ousted leadership. But that wasn't the situation for OpenAI or Google either, and their leadership still made a different decision.