Yes, but 10 minutes, or even 5, is too long for the majority of folks. Plus the cleanup involved and how you have to pay attention to the blade angle. The popularity of carts boils down to speed and convenience mostly, as well as idiot proof usability.
I have to disagree, a DE for me is much faster than a cart and not much harder to use in terms of technique. DE's dont clog, and theres 2 sides! I have a problem with the stigma around DE's being difficult to use. Have you tried a Tech?