It's also funny that I guess Superman fans just need to accept him losing to Alfred as not being a big deal.
Whereas Wonder Woman, Martian Manhunter, Captain Marvel and GL fans would go absolutely apeshit if Alfred beat them up, and they would be 100% correct in doing so.
This is also somehow all retaliation for Superman's treatment in TDKR at the hands of Batman, despite this scene in particular only existing to give the Bat-universe another "**** yeah!" moment by showing if for some reason Batman can't take out Superman himself, one of his allies still can.