I dunno. I didn't hate this episode TOO bad. At least, not as much as everyone else.
I could actually see Lee's plan working for himself at least. He's the kind of guy you could see going "you know what, fuck it, I'm just gonna get stronger, RIGHT FUCKING NOW! Uwaaaah!!"
But the fact that all 4 of them were able to create a move they'd never used before right on the spot? Especially TenTen? How the fuck do you invent a new scroll based move without making a new fucking scroll first?
It was pretty much the definition of deus ex machina.
I still like Lee's motto though. And I actually liked that part of the episode from that point on, even though the reasoning behind it was stupid.
The music helps, dunno what to tell ya.