One thing I’ll say about this is, I have tried quite a few times to place it when my teammates are in a graviton, because that’s what they advertised it would be useful for, but the teleporter almost always gets destroyed and/or no one is able to see/click on it before they die. Visual clutter and the fact that you have to wait for it to activate and then click on it makes it very hard. Also, all the damage being taken is focused on that grav so it’s almost useless.
People also seem to have an aversion to clicking on it in my experience. Like you said, it’s a failure to capitalize on an ability that quite frankly is OP.