It's just categorically a wrong statement. Just because someone knows how to play a musical instrument, I'm not sure why it would make any sense that they would understand what makes a good music video - they are a completely different medium.

You might be able to discuss asthetics from a music theory standpoint because you are "classically trained", again, it is just a weird mismatch that stood out for me recently, but I think everyone is a little more paranoid lately.