That depends for me. If this was the only time he tried to cheat, I'd say he deserved a suspension rather than a ban. But I would wanna see him banned if somehow it was proven that he cheated in previous fights, because that would mean he did a lot of damage already, to fighter's healths and careers. And for the record, I had no dislike whatsoever for Margo until the other night. Quite the opposite, I felt he got an unfair shake on this forum.
If he indeed cheated, what a shame. This should be investigated properly. If proven that he cheated he should be punished. I hope we could hear the official statement from the boxing officials.