"How To Write Songs" is such a bullshit premise to start with. You either can or you can't.
"Talent" is what is a bullshit premise. What people call talent is the end result of a long, hard road of work.
Of course, you're both wrong
If you have a halfway decent IQ, you can learn anything.
But, and this is the important thing, how fast you learn and how far up the ladder you can climb is talent.
You can make up for a lack of talent with work, and vice versa. But only up to a certain point.
Anyway, I agree that it's a waste of time watching the video.