I think you guys are right on point. I bet it's not an issue of it not "working" ... Most likely not recommended due to a) the right angle connector issue / thereafter coiling and b) seating / coiling the extra material inside the top of the unit.
I decided to take a flyer on it and just buy it. I'm doing the shorter one, and I already own the roll cart for it. To me, the features of the sleeved hose outweigh the drawback of it not fitting snugly, coiled up. And in truth, the fit in the "hose garage" was tight even with the OEM supplied hose.
Only modification I'll likely contemplate is another right-angle connector.
Thnx boys!