Zapp wrote:[...] the removal of Magic would mean a boost for Mages only.
No, I believe you're spot-on. Even if one were to argue on the basis that Dexterity and Cunning are not primary abilities for the Mage class and as such cannot be substituted for Magic, it would still result in a much
stronger mage who is bolder (free Willpower in addition to magical ability) and more knowledgeable (freed up some points for Cunning) than he'd be with the current rules.
And gameplay mechanics / balance aside, it also doesn't appear fitting from a roleplaying PoV - magical ability is not equal to strength of will; it is perfectly possible to be an arcane wonderboy who is an absolute coward, just like one could be a meagre hedge-mage who doesn't fear anything.