A longer explanation/commentary here:
1) https://forum.effectivealtruism.org/posts/nDLaCPpZTwK7o2vW9/...
2) https://www.lesswrong.com/posts/bAy6w3spwFrnguJqe/why-stop-a...
I'd be far more likely to support efforts targeted at raising awareness of the energy consumption of AI infrastructures, and efforts to balance that resource usage with positive impact that it brings. (Which implies we need to start evaluating whether or not AI usage is positive.)
I will say to your first point, it's possible they are trying to prove the model of this type of protest with the biggest and most well known company today to lay the groundwork of other protests at other companies. Someone has to light the match.
The culture of questioning AI and its usage already exists. I would agree if people said it needed to be more prevalent and have more people engaged with it, but going to an extreme to get a conversation started ignores that fact that the conversation is already going.