Good points but the culture has started expecting the 2nd place car to do this kind of stuff on demand.
It is insanity and makes leading going into turn 3 on the last lap a sitting duck joke. Brake checking happens but I doubt that it originated on the last lap, it more likely that P2 just decides to use 8 tires in those cases (and overdriving a corner that requires using the leader as a buffer).
To me you do not have the right to hit the leader without established position first.
All of the above is just my subjective opinion.