I imagine I'm playing a video game, where I have to place a bomb with little time to spare and enemies all around me. It's my first time through, and I know the game only has one difficulty, but I figure I've done everything carefully up to this point, so things'll be cool. Hard, hair-raising, even gut-wrenching, but if I focus on doing things correctly, methodically, I'll make it, and reach the epic ending.
Then my finger slips off the "hold bomb" button on the console controller. I drop the bomb and it blows up in my face. Game over.
Now, I'm pissed as hell, but I know that though I'll have to start over, I'll be thinking, "OK, this time I won't screw up." I go through again, beat it, and feel much, much better for it.
Then, I imagine the same thing happening with my finger, only this time, it's game over forever. No second chances. No restarting my console. The game disc is somehow burned completely black by the time I pull it out — it didn't wreck my console, but now I'm out $50 and a lot of hours that I put into the game, all because my finger slipped.
Who wants to play the second scenario? That's not what you buy a video game for. That's not what entertainment is about.
That's not what our beloved Miharu is about.
I vote in favor of a retcon.