Why would anyone be concerned about EROEI at this point when the very first task to complete is the efficacy of asteroid capture. EROEI comes later. Similar to landing a man on the moon. They weren't concerned about any return on investment, simply accomplishing the task. Same thing with the tipping rewards NASA keeps giving to private space companies... there's no ROI on that. It is simply to advance/ develop the technology.... that may become the leading companies/ technologies of tomorrow.
So I get it, you're not interested in the "tomorrow" potential solutions (disregarding EROEI just for the moment); you're looking for the real time, today solutions, in order to solve immediate needs... And in that world EROEI is the only (well, not the only...) thing that matters.
How about we all get back to that discussion as I apparently threw a wrench into the gears with my "asteroid capture" (and hey G2... are you trying to do the same thing with your Ocean stats on lithium...?!?! HAH!!!)