"The dawn of conscious machines will introduce vast new potential for suffering in the world, suffering we might not even be able to recognize, and which might flicker into existence in innumerable server farms at the click of a mouse." Yes, because we all know that humans care so much about the suffering of others: from fellow humans dying right now pointless deaths (poverty, aberrant laws, malevolent leaders, etc.)…
Nothing wrong with killing animals for food, the problem is we don't do it humanely. If everyone ate less meat (as they should) and farms followed Temple Grandin's advice, there would be significantly less ethical concerns.
[1] Probably not the only ones, liked the strikethroughs: ~farm-raised~ wild-caught~ ~plant-based~ https://www.wildtypefoods.com