I'm not sure that this is the right topic for the conversation, but given mods haven't relocated it yet...
Some are, some aren't. But it creates the opposite: A bunch of 2/5, 3/5, etc. pilots without levels in Piloting. Or, conversely, melee-oriented units (4/2, 4/1) without levels in Gunnery.
Many tables I've played at have a house rule about only allowing a max of 1 or 2 separation between piloting and gunnery because people who want to game the system won't bother with 3/5, or 4/1 but rather 8/1 or 1/8
(that works particularly well with homing Arrow IV that requires a cheap tagger to hit anyway, put a dumb pilot that just mashes a button in to severely cut the price, while a cheap high speed scout with tag has a high gunnery to secure the hits)