After the flood

http://www.newscientist.com/article/dn20464-crocodiles-swam-the-atlantic-to-reach-america.html

I wonder how receptive Darwinians would be to this scenario if it had been developed by a flood geologist to explain the way crocodiles got to remote locations after the flood. Seems to me Darwinians are very receptive to speculation as long as it happens to be evolutionary speculation.