Martin Luther as a monk made three vows TO GOD not the Catholic Church: vows of poverty, chastity and obedience - all ow which he personally reneged on.
Now when your wife reneges on her vows to you - it is called divorce. Are you going to go back and remarry her - NO not without her agreeing to reject her divorce and recommit to her original vow.
Luther rejected his vow To God of obedience to his bishop - which he trashed.
He rejected his vow to God of Chastity which he trashed when he god married to the ex-nun, and
he rejected his vow to God of poverty when he accepted honorariums for his ‘work’.
So why the heck should the Catholic Church rescind their excommunication for this unrepentant former priest???
WHY?
For the Greater Gory of God
You judge Luther. You will be judged.