If Open Phil is unwilling to fund some/most of the best orgs, that makes earning to give look more compelling.
(There are some other big funders in AI safety like Jaan Tallinn, but I think all of them combined still have <10% as much money as Open Phil.)
This is a good and important point. I don’t have a strong opinion on whether you’re right, but one counterpoint: AI companies are already well-incentivized to figure out how to control AI, because (as Wei Dai said) controllable AI is more economically useful. It makes more sense for nonprofits / independent researchers to do work that AI companies wouldn’t do otherwise.