Oh it's becuase it was done in the Fate/stay night anime that the meme kind of grew from there. Pretty much it was to show that Shirou was known as Captain Obvious, and it was pretty much a shout out to most fo the Shounen Jump seres and whatnot that had characters die, but come back more broken in the process.
So I would hazard a guess that this thing is really nothing more than a running gag that was pointed out by a guy who had no clue as to what he was doing.... I think.
- Finding my way through this garden is rather unbearable, but if it is to keep the one I adore company I will endure it for her sake, and her sake alone.