OUCH!!! My thought on this is for it to bend and smush like that it is not very hard. Looks like heat was applied to the arbor already, and when I look at the first picture it almost looks like a shoulder and pivot is a separate piece, though that could be from a lack of coffee
I guess I would plan on re-pivoting it just in case it does break when trying to straighten it out. It looks like it may be possible to work the arbor shoulder back into shape and that may help the pivot a bit....maybe....