Wowfunhappy
Member
Again, it wasn't "show offy" Sherlock time. It was "protect John at all costs, whatever the measure" time. As long as Magnussen was alive, even if he somehow managed to get incarcerated or otherwise subdued, Mary and John (and in utero Shirley Watson, any other name I shall not accept) would never be safe.
I understand why Sherlock did it within the context of the show, but from a story-writing perspective, it just makes for a really unsatisfying conclusion.
There was no buildup. No mystery. Sherlock just took out his gun and went boom.
Maybe if they had presented it better...
Maybe if there had been another mind palace scene, with Sherlock trying to think of a plan to protect John. Magnussen has information that can incarcerate Mary / "So destroy the document" / But it's in his mind, how can I erase a memory? / "All things can be erased Sherlock." / *Sherlock touches the gun in his pocket* Yes, but... / (John Watson's voice) "Of course you're showing off, that's all you ever do!" / "Sherlock, sometimes the best solution is—"
"The simplest one" Sherlock says allowed, as he fires the gun.
Or something like that. Something that builds up to the final moment and makes it feel meaningful.