Originally Posted by
Zonex
If you're going to depict something in a childish manner, ofc it's gonna come off as childish. Take the story for what it's worth. It was portrayed correctly, and it does make sense with most of what's happened. Your rant/speculation goes off of one chapter of explanation, Kakashi's mangekyou could have manifested because the the eye does connect nerves into the brain, its influence on his emotions may have strengthened to the point that it granted him the mangekyou.
I don't know why people have a problem with Cliche, its only bad if the author completely fucks up portraying it, most of the time, it works because it has been working and will continue to be working for some time.