I agree that using the default OS on a smart TV is riddling oneself with ads and tracking.
But it is not common wisdom, and saying everyone deserves it is unproductive and lacks empathy.
I deserved it when I started getting ads on Twitch after re-enabling updates for it for no particular reason, because I know better. My dad who wants to use Criterion on his smart TV but can't figure out how to use a smartphone camera? Different story.