The subscription thing is overblown in my opinion.

I'd like to own my vehicle, please. Without the manufacturer requiring a backdoor into it, basically making repairs impossible.

but how does that existing count as a mark against owning an EV, or even a Tesla?

It doesn't count as a mark against owning a Tesla. It's just an example that you can't assume that potentially good designs by Tesla engineers could be overturned by a billionaire manchild. And I never said anything against EVs in general.