Wow, I had no idea the 1940s were so extreme...
Yeah, you'd think the point of reviving Earth-2 would be to please the fans of the Golden Age comics.
If they want to make Earth-2 "extreme", just give Batman the damn Browning (which he only used once, and carried in one or two covers)*, make Superman beat wife-beaters and war profiteers, and make Wonder Woman a bondage/femdom mistress.
*I guess allowing him to smoke a pipe would be *too* extreme. Also, give his autogyro/monoplane a machine gun, because that is extreme...