Ouch! I would replace it - looks like "some" abuse at some point (possibly a hole in the road - and a big one at that). Look at the front mounting hole too - it might be elongated which will require some extra attention. You can also get the later model bush from a Stelvio to replace the one at the front of the reaction arm.
It migh have been hit in an accident and reinstalled up side down - dunno, but it's not good like that.