I am also angry, and was planning a 3rd playthrough at some point. And even though I don't own that many Ubisoft games (Child of Light, MMX, Heroes 6 & 7, and AC Odyssey are on my shelf) if I can't make another playthrough of MMX due to copy protection issues, I will seriously consider never buying another Ubisoft game
However, I do also think that publishers should be rewarded for good behavior, as well as punished for bad behaviour. I'd consider buying a MMXI from Ubisoft, because big studios simply don't make these kinds of games anymore, which is why I supported MMX in early access. If Ubisoft comes up with a good fix for MMX, I'd be willing to forgive and forget, and consider buying another AC game on sale, because I'm enjoying Odyssey for what it is.