The new mobile firing arcs look like what we should have got for the Millenium Falcon.
It is always a bad idea to introduce extra rules that sabotage the central and unique mechanism of your game. What is special about X-Wing? Having to predict the maneuvres of your opponent.
Much harder to do than in Armada, for example. Except if you have 360° turrets. Or can correct your maneuvres two times after seeing the maneuvres of your opponent. Or if you can fire a missile at range 3 that actually does something.