They now even doubled down to actively remove sensors from older models, to avoid the inputs interfering with the new updates.

Yes, I bought FSD a long time ago and even though I'm owed a hardware 3 upgrade, I've yet to get it. If I stay on hardware 2.5, my radar will be stay active and they can't do something even dumber like disable my parking sensors. I've driven vision-only cars and it's really worse at least for the roads around here. The FSD alpha is still too nerve-wracking to use for me to even consider installing it.