Doesn't seem contradictory to explain you thought it was okay and had no ill intent, but now realize your mistake and won't do it again. Requiring regret is problematic when you're claiming innocence (didn't do it), but when all parties agree you did it, your concern is convincing them you won't do it again.
Not quite accurate history of SMP. FreeBSD had SMP well before 5.0, but not "fine grained" which is what the 5.0 release was all about. But the conversion led to many regressions.
So the solution is Apple will be forced to trust that apps asked properly, and grant whatever permissions the app claims I agreed to? And that's going to encourage me to use more third party apps?
Contrary to popular belief, it requires a fair bit of practice to get right, which is why you see hater GMs saying oh, yeah, it's so simple we could do it if we wanted, but then they try it in a game after one practice and it fails. The Eagles spent several years practicing it, so now they're that far behind.