I didn't mind imbue, although I did think it was silly that so many Champions had magic skills. I would also like to see a better split between 'classes.' you could keep imbue around, but now you would generally want to imbue characters based on potential. Some would have great potential for magic based on their intelligence. Then you could build them up as magic users. This would make more sense than having a character that already has fire spells, but cant use them until you imbue.
At the end of the day, imbue is not critical. I think they can fix it without removing it, but it won't kill the game to remove it.