Plus the 5v supply on the Apollo I only designed to be able to run the MCU (I believe its rated for 2A), if you run a Moonlander through the USB port you could risk instability issues with either the Moonlander or the MCU if it starts drawing more than 2A.
if I went that route, I'd be using a hub for the Moonlander, but I'd prefer to run bfgminer on my Odroid that has my Gekko hub connected to it. Running things at stock or lower settings has never been my thing.