Old games were also typically steaming piles of shit. It's just that the ones people still remember are the worthwhile ones, because the bad ones have gone into the dustbin of history.
Survivorship bias or survival bias is the logical error of concentrating on entities that passed a selection process while overlooking those that did not.
There were so many bad platformers for the Super Nintendo, but nobody is ever going to go back and play those or dredge them up.