michi, I think he was having to split the difference a bit, in order to target both drummers and dancers.
and of
course 200 bpm is extremely fast - I still can't play at that pace for any length of time, but I guess I knew that nobody was expecting me to when I 1st got those discs (or now), if that makes sense. (I was very new to all of this when I got the CDs, and still am, in many ways.)
For me, being able to hear the separate parts - especially the duns - has been great. I love the cuts where all the duns are layered by themselves, without any djembes. That makes a super practice track for playing either dun or djembe, and allows people to become familiar with the melody that the duns are playing - even if they have never touched a dundun and never intend to. to me, that is
super-important for anyone who is coming to this music and cannot be emphasized enough. (I personally couldn't really hear the djembe parts very well until I started going back to play kenkeni and sangban.. it made all the difference in the world to me to simply play one part and be able to
listen to all the rest - solo phrases included.)
Also, the ultra-fast tempi
are (imo) extremely valuable for people who need to brush up on ensemble work but don't have anyone to play with (or when other players are available sporadically, etc.). from my pov, it's pretty darned boring to have to play alone all of the time (during practice/playing for fun on my own).
I think I would have tried to get the Mendiani and Kassa/Soko discs into your hands when you were brand-new to all of this, as opposed to Tiriba et. al., but that's just me.

... and maybe I'm just kind of geeky, but I love hearing the way the drum parts work at different tempi. It kind of helps the music get into my bloodstream, so to speak.