I wouldn’t consider factory farming to be an instance of astronomical suffering, as bad as the practice is, since I don’t think the suffering from one century of factory farming exceeds hundreds of millions of years of wild animal suffering. However, perhaps it could be an s-risk if factory farming somehow continues for a billion years. For reference, here is definition of s-risk from a talk by CLR in 2017:
“S-risk – One where an adverse outcome would bring about severe suffering on a cosmic scale, vastly exceeding all suffering that has existed on Earth so far.”
I’m surprised the video doesn’t mention cooperative AI and avoiding conflict among transformative AI systems, as this is (apparently) a priority of the Center on Long-Term Risk, one of the main s-risk organizations. See Cooperation, Conflict, and Transformative Artificial Intelligence: A Research Agenda for more details.