Hiroshi, who's been an Android lead since before it shipped, is no longer leading Android.
When Jony Ive and Scott Forstall and the other big Apple execs left, that was news. Hiroshi may not have Jony's profile, but it's still a major change in how Android is governed.
It doesn't even happen annually.
A reorg of two teams of 10 people? Sure. Google is a ~180k person company.