It doesn't get you a CDL but it gives you the experience needed to get a CDL with a tiny bit of book study and a truck to borrow and without incurring a bunch of debt or becoming an indentured servant to Swift of similar.

Someone who's day job is dicking around in an M911 will be able to get a CDL with minimal effort compared to some rando off the street and they will likely be able to skip the "spend a few years holding a steering wheel for a dry van and get treated like crap by dispatch" part of the truck driver career progression.