Google has already done this. Destroyed its existing assistant product -- removed key functionality, de-staffed the team, moved it all under Gemini.

I'm in a few Polestar car user groups, and people are pissed that their Android based head units can no longer do basic integration via assistant stuff that the car was initially sold to them able to do. In some cases they are blaming Polestar, in some cases connecting the dots back to Google.

It's beyond foolish. And destroys goodwill with customers. Who they seem to consider there being an infinite supply of. There is not.

Beyond that, there's the fact that stochastic "fuzzy" AIs are maybe not such a great fit when you just need to have the pod bay doors opened. Basic deterministic, symbolic, "AI" makes a lot of sense, especially once people get used to the quirks for the right way to talk to the thing.