If someone doesn't like the monarch ability of Fall from Favor or Feast of Succesion, delete that mechanic from those cards. But to say, "I pass" on the best wrath we have in black seems hard.
Some of us have a hard time just putting an errata on a card or house ruling something. At least I would never do that, simply because it would drive me mad on an aesthetic level. I will agree with you that it's just the best wrath I've ever seen in black. I would even play this if it was printed without monarch.
I really do dislike Monarch as a mechanic, especially in our format. However, Feast of Succession excites me so much as a control finisher where I might add it into my cube on a short leash. SHOOOORTTT leash.