Well, in this case, a distinct lack of needing to compile shaders.
And consoles have been 'PCs in fancy cases' since the OG Xbox. Arguably the Dreamcast.
Buy the S2 now, while they're still working through their existing backlog of stock.
I bought a PS5Pro when the word 'tariffs' was first dropped, and I'm glad I did.
The best part about smart TVs is that they DO collect your data. This supplements the price of the TV and lets you get one for much cheaper. With the money you save you can buy a streaming device (Chromecase/AppleTV/Shield/etc), ideally using this device and never even connecting your TV to the network/wifi/internet. In the end you have a cheaper TV, and you have a platform that you choose (Apple/Roku/Google/etc), and your sharing less of your data.
Sadly while your logic sounds spot on, the reality is, that TV still does ACR (basically hashing each screen sometimes multiple times a second) and builds one hell of an accurate profile of everything you watch. Even if the source is HDMI. And it's still sold.
Food for thought, that HDMI cable to your dedicated device, it likely supports networking, so the TV has a path to the internet even if you don't connect an ethernet cable directly to it, or add in your wifi creds.
Physician: One upon whom we set our hopes when ill and our dogs when well. -- Ambrose Bierce