That gear that was there was never any good since that block has been loose for a long time. There is still good gear to be had in the corner as always. I would think that the only thing that you loose is a good rest, although you can still stem there.
I'm curious how he peeled off the block. Did it just come off while placing gear? Did he fall on that gear without having the pin clipped? Did he just pull off the block while holding onto it?