Yes, as long as folks know what they are getting into, using Amazon and Google devices are fine. I also have Kindle tablets and Fire TV sticks, but the only thing I use FireTV for is to watch movies from my NAS using MrMC (an Amazon approved app that uses a version of Kodi.) Nice app, too, and easier than actual Kodi to install; just install MrMC from their app store. We like streaming Netflix and Amazon prime better from our Roku.
Anyway, as far as I'm concerned, this issue is very solved since we all know what to do regarding streaming media.