To me the part of the Tower of Babel story that made the least sense was how Batman’s contingencies dealt with Diana and Wally West. Unlike Superman and Martian Manhunter who have clearcut weaknesses that Bruce has the resources and knowledge to exploit, Wonderwoman, Flash don’t have kryptonite or fire equivalents. Green lantern for all his powers, is still just a guy with a cool weapon, Shazam’s alter ego is a kid. To me WW and the Flash are the two superheroes without easily exploitable weaknesses. So the writer had to resort to some hand waving.