I didn't read through every response so forgive me. But every person in the TES worlds are inherently magical....ability to cast basic spells. Yes it took focus to become an Actual Mage...didn't stop Warriors from lighting campfires at their fingertips. The more you studied it, the more you adjusted from one class to another.
However I do tend to agree with you about the focus of magic. I had a few moments of "wtf" when I first ran a DK and noticed that class abilities were using Magic instead of Stamina. I understand their intention, and also their balancing focus, but it struck a nerve with my own personal idea. Knowing it was my OWN PERSONAL OPINION was where I gave over and stopped arguing, as it can be endlessly argued. Is my flaming two handed attack from my DK a Stamina attack? How did the fire get on that sword...seems magical....??
But yes...even looking at the nightblades, lots of magic useage...what happened to the pure thief of TES? I don't remember my poisoned arrows requiring magic to shoot. As much as I see what you are saying, I don't demand a TES game. I don't demand purity in classes....we've been playing pure classes for a VERY long time now. I appreciate that a game "based" on the TES lore has come into reality, and I can still see it if when I run around....even with my non pure character. The abilities are there that define the class, but you are in no way locked into playing it THAT EXACT WAY which is very TES like.
I tend to play Battle Mages, and find ESO to gives me so many options of moving down that path. THAT is very TES like...
I guess I agree and disagree, but I found a balance. Although I may never agree with STA affecting white damage from a magical staff attack LOL