The "big mistake" was recording it fasely as a CG. This changed dude's strategy. They correct their error, but now his plan is irrevocably altered, and his results will likely be inferior to what they would have been had he kept with his normal strategy.
It's a travesty I tell you!
"I don't buy everything I read,
I havn't even read everything I've bought"
"I find it more comforting to believe that this [life] isn't simply a test."