I think the people on this message board overreact and smack down too many things.
This is not one of them.
Angled joysticks are a mistake.
This is a fact.
People intuitively move the joystick in the direction they want the character to move regardless of the angle they're standing at.
You can become accustomed to angled joysticks after using them for a while, but guests will struggle with it.
Even if you are accustomed to them, I bet when flusterd you still screw up and push the wrong direction.
It's like asking if you should wire the steering wheel in your driving game backwards.
Sure you can become accustomed to it, but it's wrong and other people will find it annoying.