The delivery of a presentation is p3. It is an essential component of the effective presentation.
Useless

Most presentation feedback is useless. “Thank you for your excellent presentation. I very much enjoyed it.” This really is not the critical review you hoped it would be. Feedback needs to be actively sought, shared in the spirit of improvement and as part of a conversation. Vague, polite platitudes unsolicitedly offered and based on what the listener felt are useless when it comes to development of presentation skills.