That’s a curious definition of “complete”.

The thing is, a game with no updates becomes stale, and players will often get bored of it. (Yeah, chess hasn’t received an update since the 18th century, and people still play it, but it’s a totally different game from Conan Exiles due to the skill aspect, competitiveness, rankings etc.)

So changes are a must. Not all of them are going to please everyone, that’s for sure. But no change would eventually displease most, if not all, players.