> an exceptionally well-liked and popular brand name
I don't think so at all. I'm not sure if anyone I know outside of tech has ever even heard of Chromecast. It was never super popular. While every single one of them knows what an Apple TV is, and they know what the Chrome browser is.
The replacement makes much more sense. It's just branded as Google, and what it does -- it's a TV streamer. The branding tells you that it's Google's version of an Apple TV, while "Chromecast" told you nothing except that maybe it had to do with a browser (which it didn't).
Chromecast was always a bizarre name to begin with, since it didn't really have anything to do with Chrome. Chrome wasn't necessary to use it, nor did it run Chrome for you.