They're clearly stepping on eggshells by exposing Hovind's bad arguments and shoddy scholarship, since Hovind is popular among the YEC audience. Or, more likely, they're aware he's left a trail as clear as a slug's, and a lot slimier, and want to dissociate themselves before some of the uglier details become even more public.
The nasty website dedicated to this fine man are for a good reason. He has the evos running scared. He is more public and vocal than most who fight the lies of evolution. Therefor, he is scrutinized and scoffed at more.