Is it me or is McGinnis' wall insanely OP?

Just checking if it's not just me, McGinnis being able to spawn a massive wall that you can't destroy is very annoying to play against. She can single out a person pushing and dominate a team fight with the right usage of this ability.

In almost every other game I've played a wall like this can at least be destroyed by dealing enough damage, but nope. You have to wait the 5 seconds or so for it to go down.