This is fine unless price is ranging sideways. If it is doing that, just stay out or go with longer term PA.
Correct, i agree. And thats where experience comes into play. Often times, by the time one realizes the market is ranging, they are already in the negative and fighting to get what they have lost back. The second one notices price is ranging, its better to just leave the screen and take a walk or something, live to fight another day.
Directional trader is forced to be biased by his/her method. Whenever we get a signal, it's a bias which tells us to either buy or sell. Now the other thing is what kind of bias criticized by the OP here? Method-based, justified by your rules or purely emotional, illogical bias? That last one of course doesn't make much sense.