This wouldn't work for many reasons, among them that Nintendo was already making a modern Metroid 2 by the time that they shut down AM2R.It would have been so so cheap to actually deal with the devs, help them do a quick Switch and/or 3DS port, and release it (the devs would have made good money even with a small cut), and give their own games more breathing room (filling their gaps better).
Beyond that, I feel posts like this really miss why AM2R was made.