If flight attendants cleaned turns, it would be even less of a problem.
I find it odd that a 300 mile DFW-DEN flight has to have FSC's come up to the cabin while the FA's (who don't change aircraft on the turn) just sit onboard and read Cosmo, yet a 800 mile thru trip is well within the bounds of the flight attendants to take care of even though they're doing a change at the hub. The old argument with the TWU and APFA was that it would cost FSC jobs in the spokes, but I don't think that's the case any longer.
Since AA abandoned meal services, got rid of pillows, reduced blanket provisioning, eliminated messy stuff like pretzels, etc., seems to me that a lot of the work on a CT is reduced (although I'm sure there's some tradeoff for the food customers now bring on).
Rumor had it that this was one of the things the company wanted in return for extended recall... Maybe if APFA approached the company with this as their sacrificial lamb, they'd agree to a side letter on recall. It's not like it costs FA's anything out of pocket or in terms of quality of life. 95% of the "work" can be done on final approach. Ask customers to pass their trash, leave it in the galley, and let the clerks concentrate on the lavs...
Oh, wait. That's exactly how WN and B6 do it. Wouldn't want to be as efficient as the guys who make more money...