The expose male connector is OK; it's not a double-ended male cord, and there is no chance of the terminals becoming energized.
Unless someone plugs a suicide cord into the female outlet, although I don't see why anyone would do that... Other than general stupidity.
IMHO, if you're going to go through the trouble to put in some boxes and Romex, you should just do it (or have it done) right. Looks to me like you could get most of this stuff at the local Orange Box. Obviously, they're targeting suckers who don't know any better.
