I agree the ethicist types are very lame but if they were trying to be opaque and obscure how the sausage is made I don't think they would have released as many AI papers they have over past decade. It also seems to me that imagen is way better than stable diffusion. They're not aiming for a product that caters to AI creatives. They aiming for tools that would benefit a 3B+ userbase.
If you want to hire good researchers, you have to let them publish.
Good researchers won't work somewhere that doesn't allow the publishing of papers. And without good researchers, you won't be on the forefront of tech. Thats why nearly all tech companies publish.