If he manages to get a significant amount of the OpenAI engineers to jump ship maybe, but even for those who are largely motivated by money, how is MS going to offer the same opportunity as when they joined for equity with OpenAI? Are they going to pay then >$1M salaries?
My uneducated guess is that OpenAI really screwed up the PR part and the current Microsoft’s claims are more on the overall damage control / fire suppression side.