"Investors" may think this or that but who cares?
Microsoft's problem is that it had the delusion that it could take over the world by hook or by crook (being powered by The Insufferable Ballmer for a long time didn't help) and roll over anything else out there. In parallel. With contraptions that were not even sure to work or appeal.
Then it found that the world is kinda vast and that people don't particularly care for the Microsoft brand, which has a distinct association with ... well, used carpets spring to mind.
It's like a hegemonic power deciding to retreat after a failed wintry Moscow expedition to concentrate on managing Europe instead.