i mean, the amazon echo was a pretty interesting new thing that they created a market for. tthen once they realized people were buying it every big tech company jumped on it to not get behind.
the problem is if google doesn't go into the "speaker with a voice assistant" space, they allow amazon to possibly gain dominance in said space. this is why everyone wants to get in on drone delivery, self-driving cars, vr, etc..
and while "creative", the kinect wasn't a thing microsoft invented either. in fact, primesense, the company that created the original kinect got bought out by apple, and basically that tech is in the iphone x now.