Well the tank that blew on Apollo 13 was initially on Apollo 10 - which still had a LM, but a much worse one, of the early overweight things. Not sure if Apollo 10 LM could have handled the emergency as well as the Apollo 13 one did. For a start they didn't filled the tanks completely, just in case.
Plus of course it would have thrown Apollo 11 into disarray, more exactly in a dress rehearsal for Apollo 12.
Lovell is one of the three men that flew to the Moon twice (with the Apollo 10 LM crew split between 16 and 17 - John Young and Eugene Cernan) yet is the only one that never got a moonwalk.