I do not get why you are against these bastard weapons using highest prof, by your logic all bastard weapons use 1h?
No. Only the langes, fighting axe, and mil sickle would use 1h IIRC.
Bastard, heavy bastard, longsword, goedendag, spiked mace, morning star, etc would all use 2h.
Polearms get fucked, but they're versatile as is.