I mean it's not the most overpowered ability in a healer's kit but it is definitely god modeing. Every two minutes if you have a problematic teammate you get to play the game for them to a degree. No other class has the ability to displace another player, to make another player participate or properly perform a mechanic.
But even then, there's too much abuse with it. It's also a heavy case of "healer knows best" where a lot of times egomaniacal healers use it thinking they're helping and they end up damaging the party instead(i.e. that one healer that decided I wasn't moving quickly enough to the rest of the party with my stack marker and ended up sling shotting me away from them instead). I regularly hear about healers, new or old using it to drag tanks through dungeons as if they were dogs on leashes. For all the good it does, it seems to be used poorly just as many times.