So i spent the weakend thinking about this.
If this is how they are going to do auto-attack, then i believe they want to make the basic attack count as a proper choice of attack, like the basic attack of SWTOR. It would certainly make the 3rd person combat more engaging.
If thats the plan, then fair enough. Holding the right trigger on the controller is easy enough, but with the keyboard and mouse the trick is getting the right key/mouse button.
Traditionally holding the right mouse button moves the camera and holding both mouse buttons down makes you walk forward in every 3rd person mouse driven game. So if left mouse button is attack and holding it down enables auto-attack, then that traditional behaviour is gone and WASD movement is the main way to move. Which to me, is fine as i play a lot of WASD movement games.
I suppose we have to think how often do we use the tactical cam which has auto-attack as were used to. If we are using that for most of the fight, selecting our parties attacks etc and barely use 3rd person, then it really wont affect us.
But if we use 3rd person often and rarely use the tac cam, then it will affect us a lot.
I have been playing DAO this week, and being honest, when my abilities were on cooldown, and when i was out of stamina, it did get boring just watching the auto-attacking.
I think i will need to play the game to see how i really feel about the change.