Completely normal for Google. A few weeks ago they bricked my Chromecast. It wouldn't take casting from Netflix anymore, so I looked it up and everybody including Google tells you to reset the piece of crap. I did, and now Google home won't connect to it anymore. Something about a certificate expiring somewhere and now it won't work at all.
I'll try again in a few months and then bin it. I won't be purchasing any further cast/stick devices, I'll simply use a laptop and chrome, and when that stops working, I'll stop using Netflix or Amazon prime video.