"Seems to me, it's only a challenge for Creationists since the geologic community has been able to explain these processes for quite some time." --No really, when you have millions of years, who cares?
"Yes, that is exactly why it is a problem for YECs. They don't have millions of years, so they have a challenge. The mainstream actually has no problem with the geological features of MSH." --Exactly. Sucks to be me, oh well.
"Has anyone else read that ICR paid Austin's college expenses? " --No, but I would speculate that they paid his expenses for going to the ICR grad school: