By the time Musk (and Altman et al) was starting OA, it was in response to Page buying Hassabis. So there is no real contradiction here between being spurred by Page’s attitude and treating Hassabis as the specific enemy. It’s not like Page was personally overseeing DeepMind (or Google Brain) research projects, and Page quasi-retired about a year after the DM purchase anyway (and about half a year before OA officially became a thing).
By the time Musk (and Altman et al) was starting OA, it was in response to Page buying Hassabis. So there is no real contradiction here between being spurred by Page’s attitude and treating Hassabis as the specific enemy. It’s not like Page was personally overseeing DeepMind (or Google Brain) research projects, and Page quasi-retired about a year after the DM purchase anyway (and about half a year before OA officially became a thing).