Boy, the word "doomer" sure is loved as some putdown. It's used when people talk about the climate future... "you're such a doomer". Yet it keeps changing.
He's right on the anthropomorphism problem, but that's human nature. We do it with everything. We should try to avoid it with AI because he's right, it's not someone, but just technology. However, him using that as an excuse that it can't do harm as "just tech systems" goes along with the doomer line. He's dead wrong about that, it's doing a lot of harm, AND can have actions that, while not sentiently driven, are not predictable and are perfectly in line with a non-aligned system that we thought would do X, but ended up doing Y, Z and Omega. Partially because we made human mistakes and left doors open, but not solely for that.
This is the opposite of "doomerism", it's the dog with the coffee saying it's fine. Which ought to be a big red flag.