I may have missed something but it seems everything that Logic did for magic is now ties to the Magic attribute, except being a possible drain stat. # of focuses you can bind now magic, enchanting tests now magic, arcana test now magic. Hey Astral forms my Logic is my agility that should totally rock, except as in the previous edition astral combat uses willpower, so astral agility is the do nothing stat.
How about Assensing since logic lost all of its skills, that had to to be governed by magic now..well no its still intuition.
Binding the number of spirits you can bind is now limited by magic not charisma, oops nope still charisma.
So, why the hate for logic traditions. Logic is the crap stat in 4e as is, the more important skills its tied to don't actually really use it much if at all. Where as charisma gets the social package, and intuition gets maybe the most important skill in the game perception.
Even before 4a logic traditions were the worse choice due to the skill sets the other attributes got and due to well elves getting a +2 charisma. So they made logic traditions even worse now, and the other traditions are still just as good as before.