It's something those people slating X-Wings, B-Wings, Kihraxz etc continuously overlook, because they lack the experience necessary to understand - flying at low PS has it's advantages.
That advantage is much more difficult to pull off, though.
Low PS blocking requires you to be accurate in your predicting of your opponents moves.
High PS repositioning doesn't require that kind of accuracy, because if you predict wrong, you get a chance to fix it afterwards.
Edited by DarthEnderX