Why would China pick now bludgeon the Buddhists?
It simply makes no sense - one can only conclude that, like the old USSR in the summer on 1968, the Chinese government just doesn't care about world opinion. So to hell with the rest of the world, and to hell with the Tibetians.
If you stop and think about it, China's obsession with Tibet doesn't make any sense. It isn't like they had some potent army poised to invade China. It is a poor, isolated, largely mountainous place.
Absolutely nothing about it makes sense.