Did you have the sound turned up?
It starts out with a CT 22 turned all the way up, a 27mm hose (green AS), and the Turbo-Suction Brush. It's beater bar is air driven.
You will hear it come up to speed.
I then switch the hose to a 36mm (gray non-AS) with all else the same.
You will hear a dramatic difference in the speed of the Turbo-Suction Brush after it spools up.
That tells me that with a 27mm hose on a CT 22 or CT 33, it is restricting the air flow and you aren't getting full flow from the pump. So, not only is the hose cross section bigger and therefore, less likely to clog, but the air flow is considerably greater.
That was the point.
Tom
EDIT: BTW, there is no difference if the 36mm hose is AS or not. I just used a different color hose for the visual effect.