I don't think that "AI" makes personal privacy suddenly start to matter.
Rather, people like Zuckerberg have been telling people that privacy doesn't matter for decades and to post their photos and info onto his platforms.
Conventionally, that has always been a bad idea. Considering that his entire business model has involved monetizing people's data for decades, it's not surprising that he is looking for another way to do it.
To look at it another way, if Zuckerberg suddenly decided he didn't want to use people's data in this way, would it suddenly become a good idea to post all this information onto his platforms? I don't think so.