I enjoyed the video, I liked his Fashionbly late one better though.

Interchangeable? I don't know, I thought they all had their own style, at least in s2. It's the small details that seperated them from each other, these details could be found in:
- landing
- type of tricks
- filming
Especially Bob Saget.

And even if they were interchangeable, very few of us were/are able to do the lines performed by Kanen and very few are able to create an edit like innout - I'm 99% sure of that. I really think the difficulty of some things BKS has done, whether it's the tricks they did or a certain vibe they've created around their videos, is being underestimated by some people. But then again, it's all about one's opinion (and people should stop trying to objectivy theirs, imo!).
I'm not saying we should dickride GK/BKS like Linny.