>>280456170
>>280456228
Sure, but he could have just as easily done a simple one panel gag to explain the retcon
>Hey Saitama, remember me?
>? No.
>Really? You saved my life at the tournament last week!
>Oh...I see... (thinking: I don't remember any of this happening, but I don't want to be rude to this crazy homeless guy)

You might consider it unnecessary, and fair enough, but Saitama saving Suiryu's life at the super tournament is a pretty significant reason for him being a neo hero in the first place.