Why does Metagross have no rework on its unite move?

Enemies can easily escape its unite move when barriers are up making the unite move mostly useless to dash skills of opponents and the eject button. Another issue is its cancellation when bumping into a wall.

I hope this gets fixed because as decent of a pokémon it is, the unite move can be a hindrance to teammates instead or ineffective for team fights. Worse, it could cancel if disrupted by wall.