I'm in class, so I don't have time to fully illustrate why you have no idea what you're talking about. Physical damage isn't 'stronger' because it has more limitations.
1. Most physical fighters have to close the gap constantly.
2. Their attacks don't apply status effects.
3. There are abilities in the game that totally negate a physical damage class.
4. They usually have to run through or navigate a bunch of annoying terrain effects.
5. Their attacks can miss completely resulting in a huge tempo loss of AP and time.
This is just the ones off of the top of my head, and even if there are more, this is more than enough justification of why it's pretty balanced. It sounds like you just have a problem with the Necromancer school than anything.
The only limitation necromancy has is the source point limitation on grasp and blood storm. Either 1 of the 2 is a 1 hit combat ender.
