Same reason why there isn't a 80# section of the forum? For every post saying it's a waste of time, unnecessary, no one can do it properly, etc, there is someone saying they train year-round and they handle it fine and they in fact do.
I don't shoot long range when bowhunting but I do in practice. I can shoot respectable groups at 100m just fine, but I won't hunt that far as I don't believe my broadhead tunes and flight are robust enough to hunt that far.
Having said that, I'm just an average bloke. When I look at someone like Josh Bowmar and see how strong he is, how much he practices, and how easily he handles his bow, it's absolutely within the realm of possibility that he would be able to shoot significantly better than me at that distance. The same can be said for Levi Morgan (as Beendare brought up). Levi would shoot groups at 80 metres that make my 40 metre groups look stupid.
So my point is, I've got no business telling someone like Levi Morgan or Josh Bowmar that they shouldn't shoot a long way when their capabilities far exceed that of most bowhunters.