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The main arguments are that it's fair, correct, and better. All of this is very subjective.
Where did you get the idea that all (yogurts) schools of magic should be equally useful?
First, you talk about the advantages of TE, and then you hide behind the glitches of SoD. If there were a TE2 that was SoD without the glitches, then I would agree with you.
All the innovations in TE are quite controversial.
The main question is, can we create a TE2 that would only fix the bugs of SoD without affecting the game's mechanics?