Earlier quoted context omitted.
When you work on software available globally, it's very normal to deploy or roll out features region-by-region. This seems par for the course.
The article I linked says "The setting was reportedly added after protesters in the country used AirDrop to spread anti-government material." Most other articles also mention this. I'm not unconvinced this had nothing to do with the feature. I'm just pointing out that this was already in the works. This was not a fast reaction to the current protests. I don't think this is good. But Apple didn't just roll this out at…
I think the timing and China-only bit is eyebrow-raising, but it'd be nice to know if this is just speculation, or if there's a credible source within Apple that's saying this is the reason why it was rolled out in China right now.