According to Gavin McLaughlin's match report the penalty was awarded against Lee Desmond, so it is reasonable to assume that Ian Birmingham was red carded for something he said.
Deeply ironic if Jim McKell was so offended by the language used, when he was accused of using "unprofessional language" by Sean Hoare on his last farcical performance in Oriel Park when awarding two dubious penalties to Bray.