Tbh, that’s the first time I heard that take. With the openness of the deck I’m sure you could somehow just use a deck as the controller though.
With a smart TV it should already “just work”… Just get the steam link app for your TV and pair it to your deck to play on the TV and use the deck as a wireless controller. Don’t know if you can turn off the deck’s screen though.
But it is opt-in. You can opt-in to not having your bones ground. Everybody knows that all major software defaults on grinding bones, so I also see absolutely no issue with this.