One thing and one thing only.
This is all BS. When I created my monk I didn't choose that fighter Archtype because I wanted to be a MT. I choose it because they were a fighter class that was unique from the plate tanks, and they had more DPS and could easily adapt to protect other group members from attacks. If they are going to make the base fighter all the same but with a different look then they better create some more classes because I thought the archetype was chosen to distinguish yourself from the rest of the fighters. As a matter of fact at level 10 you made a choice to be different then at level 20 you chose another path that would even distinguish you even more. If I want to be a MT I would have chosen the Guardian Archetype. It is great that my Monk can actually hold some aggro now, but I don't want to be a MT.
Again, if they want all fighters to accomplish the same thing with a different look then they better just make some different classes.
Monks were not meant, at least not based on what I have read, to be MT. In exchange for more DPS they had less taunting ability. Paladins were not meant to be MT. They were given more utility than Guardians in exchange they have less HP and less aggro control. What is so hard to understand about this. From what I read here some people want there to be 4 classes that all accomplish the same thing. That is BS.