Probably common sense (since it’s based on Chromecast technology) but I haven’t seen it mentioned yet so I figured I’d put it out there.
Google Home works with the Chromecast binding. I haven’t fully tested it, but it does allow the Home to be listed as an audio sink and you can push TTS messages to it. One weird thing, on my first message there was a chime tone before the message was delivered, on subsequent tests the chime did not sound.
The documentation should be adjusted I guess to list support of Home.