It doesn’t take a rocket scientist to figure out what happens with this challenge, assuming Dawkins accepts it. Dawkins will come out with some pseudo-scientific hair-brained explanation (probably combined with contentions on other "agreed" characteristics), he will have the backing of the anti-shroud community, and then claim that his view wasn’t accepted because of the bias from the other side.
The media, if it doesn’t side with Dawkins, will report both sides as equally valid.
As of this writing there have only been 428 views and 3 comments after 3 days. The challenge is about 8 weeks old. Does Dawkins even know he has been challenged?