I have seen far too many "Why do we need auto attack?"

How about... Why do we need stamina?

We already have TP/MP limitation.
We already have Cool Down limitations.

I see absolutely no plus factor as to why stamina is a must have let a lone a convenience...

Stamina allows us to get a burst of 3-4 basic attacks at the beginning fight and then we resort to 1 basic attack every 2-3 seconds which is the SAME thing as auto attack... Then we have to wait 2-3 seconds to use the 3k tp we just built up to use an ability or a weapon skill.... and throughout the rest of the fight you are using 1 basic attack... 1 weapon skill... 1 basic attack.... 1 ability.... rinse and repeat.

Auto attack will allow us to implement Double attack and Tripple attack which is the same thing as the 3-4 fold burst we get from the stamina gauge. They could add dual wield, haste, haste equipment. But adding these adds more content and further diversifying other classes. Things to look forward to.

So give me a reason as to why we need STAMINA.