On one hand he could be wrong again (if it helps, he's been completely off during the Apprentice this year, so he can be wrong). Plus, Art & JJ doesn't have the best edits.
On the other hand, neither do any of the other remaining teams. Not only that, while Art & JJ have been pretty mean with their comments, their comments make sense. Not perfectly, but they're generated by what you should and shouldn't do on TAR. Could be foreshadowing.