Those videos do begin with a behavioral analysis of the malware. Wouldn't it be better to start off with a static analysis?
I think that's a personal preference as long as you're doing behavioral analysis correctly. (isolated system, yadda yadda yadda) I find it easier to leverage my static analysis with my behavioral analysis. I'm sure there are people that cringe at the thought of running malware, but in my mind you're going to end up running it one way or another.