It's tough, but that standard exists for a reason. They want it to be somewhat arms length. But this means that if you go too far off the beaten path, it's hard to follow.
I agree that the standard exists for a reason; my point was that it's unfair to characterize him as not trying.
The standard doesn't just make it hard to follow someone who sets out a new branch in depth - it makes it virtually impossible for an extended period of time, because it disqualifies anyone he guides. Such a standard requires that we essentially wait 5+ years (at best) until either high quality maps or guides trained by the initial guided group exist. (And even then, we'll probably wait longer.)
It's not exactly fair to paint that fact as a failing on his part to educate others -- it's a nasty corner case in a generally good academic standard.
