Jeff during the stream: "No one is gonna fall for the coins, dont worry about it. Youd have to be a little kid. An eleven year old!"
Patrick: *jumps for the coins*
Pretty sure that way only before he could see where the floor was.
Also, this comment on the video is great
It's funny, but the GB guys deciding on the details and testing it (a bit) means there is at least some method to the madness. For example with using the POW block as a step up to the door and such.