You fell in love with a game and it's characters, sunk hundreds, maybe even thousands of hours into it. It became a comforting, immensely satisfying part of your daily life. Then you heard a sequel was coming and got really hyped but when it came out it was utter rubbish...
4 was janky, and jumped the shark too many times in the story.
But damn did I have a fun time playing it. The weather guns are stupid, but they're fun. Just like the jetpack and weather guns from the DLC for 3. We're not playing these games for realism; at least I'm not. I wanna glide around over a base and bomb the shit out of it and watch everything explode.