No NO. (Do two negatives make a positive?) Here goes...
1. No, tactile contact, finger technique, and pressure does not equal percussion. Finger technique (and tactile contact which includes pressure) is required for violin, viola, cello, bass..... Yet they are not percussion. Is clavichord percussion too?
2. I made no argument that mallet instruments are not percussion (marimba, xyl, etc.) I said that PIANO is in a category all its own. At your college, please ask your piano professors if they majored in percussion.
3. Please refer to where I said the "piano as percussion" argument doesn't matter because there are no pianos in drum corps...only SYNTHS.
Is this when you tell me synths are percussion too?