Well I completely disagree with the "stiff" comment. These chords are smooth man!
by stiff I mean rudimentary, on the beat, up/down, basically the rhythm
Busy? Yea, a little. It's not something you can abuse and use repeatedly.
The video didn't tell you when it can be used but I did in the title. It's a substitution for the 2-5-1-4 progression that will land you on the four if you time it right.
dont you see, for some folks, thats not enough. He didnt say why he selected those chords as opposed to some other chords that'll land me on a 4. He didnt say whether it was tritones, 2-5s in another key, or anything. He basically said instead of playing A, play B.
I mean, i know I can try to break it down, and see which chords he's substituting for 2, and which ones hes doing for 5 and so on.; but it seems to me, if you're in a teaching/demonstrating mode, theres more to it than calling out notes.