They were having a disagreement about Johnsons performance, Jason was really insulting and Karen was sticking up for him, saying how far he'd come, how he couldn't even stand up at the start. Jason said...."Well obviously your opinion means nothing as you are no longer on the panel." or something to that effect.
he was really out of order.. he gets very personal....not everyone has his thick skin he seems to forget.....although I do respect his judgement as a choreographer, he needs to acquire some people skills and realise he is not auditioning hardned experienced hoofers for stage productions !