BPF
The person I right seated in the Seneca was An experienced pilot yet seemed unable to be anything but an unwilling passenger to the intensifying bucks the aircraft was making.
To me it shows something lacking in training that a pilot gets in a situation slightly out of normal and fails to know what to do.
A go around with a bucking aircraft goes against all your instincts which is to stop.
Whether a student has the wherewithal to identify that they have actually landed flat or on the nose is another question.
The answer is to train pilots not to land flat and correct trimming is part of that.
The go around is part of the technique to rectify the situation but not needed in its entirety to me it's back to the principal of training aircraft driving rather than handling .
Anyway I am not an instructor