In principle, I agree with parliboy. However, if this were the $100K and there was any possibility that the contestant could have had a qualifying time, I'd replay it, simply because there was a precedent of Dick alerting clue-givers.
No one ever brings this up, but I like Dick doing (being allowed to do) this. While intrinsically there's nothing unfair about letting the team proceed, it makes better viewing if they're corrected in progress.