Lets look at the video tape...
Glass houses and all. We agree exposure is bad though.
http://forums.theory11.com/showthread.php?39380-Two-Cards-Monte-By-David-Blaine
You are right I did critque pretty harsh.
I know I was harsh because the user had several "tutorial" videos on his you tube account.
I shouldn't let that influence my feedback, but clearly in this case it did.
My feedback wasn't very productive either.
I should have told him
a) It is unnatural to take a card from the table put it back on the deck, then back to the table.
You need a motivation for putting the card back on the deck it looks unnatural.
If you are doing it to avoid the other sleight more commonly associated with this trick, then you may consider learning the other sleight.
b) The fast switching is unnecessary and only confuses the effect. In fact if you slow down, and make it easy to follow the cards switching places, then the final reveal would be more magical.
You are right, I was a jerk, and I am big enough to admit it.