I think he's just trying to remind people that someone can both be a CEO of a powerful company you might disagree with/hate as well as a real human with a husband and child and that trying to set fire to his house could kill those people.

I personally wouldn't go as far as to say the Farrow article caused this but it seems fair game to respond to an article that had an over the top cover image of an animated Sam Altan picking and choosing faces with a photo reminding people he's human like everyone else.