I respectfully disagree.
PMP, in particular has the "Oh shit I'm going to hit that F*ing wall" sensation after your bike tries to shake itself apart and throw you off coming through Turn 10 (it's not quite that bad, but it can feel like it--especially if you've not hit it before).
The Group of 10 taking off can happen in any session where there're faster riders that you may or may not feel compelled to keep up with. I think a decent amount of the incidents at track days are people getting in over their heads trying to keep pace with faster riders--just like it happens on the street (though at least at the track the consequences are typically milder).
Track days are way more than just corner practice--you're learning the true capabilities of your skill, you're learning your bike's true characteristics, you're learning what your tires like and don't like, you're learning (or should be learning) how to smoothly enter and exit corners, you're learning to ride with other people of very different skill levels and paces (lap times, etc), you're learning how to ride consistently so others can move around you without changing lines and messing everyone up and causing an incident...
There's really nothing I can think of that cannot be better learned on a track and then applied to the street...