Maaaaaybe? Like, it probably helps mitigate some ingest of data from trackers (because on a web app running on your browser they are probably mining MORE stuff than on your TV by default, depending on your setup), but they still know everything you watched and what you did in the app plus anything adblocking isn't successfully targeting.
I just don't know that I have a sliding scale on this. Once your data is out there it's out there. People will be buying and selling it. There is such a thing as partial mitigation, but ultimately I do stand by the point that a lot of people fixate on some vectors that are less subtle and still have massive holes, sometimes in setups built specifically to replace the more conspicuous snoopers.
I'm all for keeping your TV offline or logged out, but that's in the context of either not using streaming apps or having them tightly controlled wherever else you use them. Otherwise I may prefer to have them leak my viewing habits from a TV that only ever uses streaming apps than having access to my PC where I do a bunch of other stuff and log in to a bunch of services that may be subject to tracking.
I'm not being contrarian, either. I genuinely think this is a nontrivial issue and you'd need some heavy duty monitoring to get a good sense of what is going on between different configs.
I'll also say I'm not surprised smart TVs have an increasingly terrible reputation on this, though. Most of what my Pihole ends up blocking is smart TVs calling home. It's kinda nuts how frequent and persistent they are about it.
And hey, tell the guys up the thread about the data collection thing, apparently some didn't get the memo.