Raiders have much better upgrades for anti-ship and anti-squadron damage. The points increase is completely reasonable in light of the amazing upgrades the Raider can get, largely due to the Black Dice upgrades such as Ordinance Experts, Expanded Launchers, and SW-7 Ion Cannons.
Its a theory that I could almost believe - until last night when I met 3 x Ackbar Corvettes with turbo reroute circuits.... Vader is still in force therapy.
Ackbar only effects side arcs.