The slippery slope is not a fallacy if the slope is, in fact, slippery.
E.g. for my bank the app is the only 2FA option that doesn't come with additional costs.
The saving grace is that attestations can be forwarded but I'm sure even this will eventually get solved. (And the sheer fact they can be forwarded doesn't diminish the dangers of this use of the technology.)
That would require you to have root on a "trusted" device so you can extract the challenge-response that proves you are indeed "trusted". Which is becoming increasingly harder with each iteration.
This isn't a slippery slope, this is a vertical surface that was erected over seven years ago when SGX hit the market, just standing there.
Luckily the content I watch on Netflix is also freely available through torrents so I don't usually notice the difference, but the DRM fight was lost long ago. Whatever evil things the government is planning on enacting won't be beaten by someone telling the police officers that they use Arch btw.