Tahm Kench and Shen

Tahm is a flippin' support , why the hell does he have a higher damage potential than shen (both on-hit and casting). And the sad but funny thing is... although he is a support , he is far less team reliant than shen, far more versatile,and can do what shen can in his own way and more. People tell me that Tahm does not have a gap, close, taunt or disengage like shen has.... I say:

Gap closers are the last thing a tank needs, especially if he has ranged CC that far exceeds the range of many gap closers in lol. Tahm has a slow and a stun for CC, and he doesn't need to make enemies attack him when he can effiently take an injured ally or damage dealing enemy out of a fight with His devour for 6secs max rank.

The only thing shen has that tahm doesn't is a reliable disengage, but its too costly to use as a means of escape. Also Tahm's health regain and shield are bigger but only activatable if he takes damage which imo is better for a tank (that way is harder to waste).