Comment by ambicapter

Doesn't it increase the skill required? You need to be able to jump in at the perfect time, while waiting patiently for 99% of the time. It's like self-driving that requires you to "jump in" at the worst possible time (0.5 seconds from a crash), and stay put the rest of the time--but don't get bored or inattentive. The only way to do that would be to be so naturally good at the danger point that you can do it basically reflexively.