Clogged arteries, i.e. layers upon layers of risk-averse and clueless management. Top management paralysed by what the stock market may think of their ideas. You could also ask why Bing has been forever underperforming despite all the cash Microsoft has throw at it so far?

I'm talking about the copyright claims. If Bing and Google stand down when people request their sites to be removed, how would OpenAI have the resources to push against that?

Logic need not apply. Lawyers will be paid to work around that.