Even smaller games now have ludicrously long development cycles as developers have learned they can exploit mentally challenged gamers by selling them "early access" (unfinished games).
Early access sometimes means unfinished, but in other cases they're fine - Factorio is an example, it had a fully fleshed out game in early access, then they spent another 5+ years adding features and fixes and the like. During that time, a lively modding community sprung up which added loads of playable content to the game.