Deepfakes are going to become a concern of everyday life whether you stop OpenAI from generating them or not. The cat is out of the proverbial bag. We as a society need to adjust to treating this sort of content skeptically, and I see no more appropriate way than letting a bunch of fake celebrity porn circulate.
What scares me about deepfakes is not the porn, it's the scams. The scams can actually destroy lives. We need to start ratcheting up social skepticism asap.
It's not like the technology is going to disappear.
The specific policies of OpenAI or Google or whatnot are irrelevant. The technology is out of the bag.