It’s cause AFSOC/acc/Air Force doesn’t really want it.
AFSOC blows their load on gunships.
ACC is fighter mafia.
And the Air Force is incompetent.
Look at the history and and origin of the U-28. It wasn’t any Air Force types pushing that rope. And look how AFSOC/Air Force treat that platform. There’s your answer for light attack.
Itll continue to be the red-headed step child