imperials are the only ones that dont spam large ships these days. Probably because the Firespray is worthless, Shuttle is unusable outside palpmobile since its so clunky, and the Decimator would be great if it was a few points cheaper or had a sensor slot instead of a third crew. Course the Decimator could become pretty good since 3 crew allows some unique comboing....that is once we get something to combo with lol.
Even if the Ace mentality wasnt a thing i dont think we'd be trying to run multiple large ships.
i still dont think multiple large ships should even be legal in normal games. Course that would never change purely because of the Iggy title being a thing and nothing else. "Heavy" fighters are typically used to attack starships, not other fighters.