Single-player oriented games IMO have more attention to detail in this regard. Back then games came on a disc in a box. Now it's almost assumed by default that a studio will push out a game and fix the bugs later.

"Multiplayer" at the time really meant split screen with friends. It was assumed that a good chunk of time would be spent playing the game solo. So they couldn't slack on that part of the game.

Now it's all multiplayer-first, and instead of paying a one-time fee for the game, warts and all, you're nickel and dimed endlessly for "season passes", "custom skins" and other eye-rolling 'bonus' content.