I've just realised the series's writers think the audience is stupid.
This last season is been just a mess. It seems the writers have decided common sense didn't matter, and just aimed for show and surprises, even if that means terrible plotholes and characters acting unrealistically.
It all went terribly wrong in the last episode:
- What the hell was the plane scene about? Eurus having dellusions about being in a crashing plane?
- Sherlock parents forgiving her so quickly even though she killed one of their children
- Moriarty cringeworthy appearances throughout the episodes.
- Eurus plot, including mind controlling the entire staff in the facilities without anyone seeing that in the surveillance cameras.
- The pointless tests and games.
- Sherlock's trick on his brother at the beginning (with the clown and the girl).
I didn't think I'd say this years ago, but I'm happy this mess is over.