The tyranny of the Broadway standing ovation came to an end Thursday night. Opening-nighters robustly applauded Michael Frayn and his play “Democracy,” but decided to wait out the curtain call in their seats. Was it a sign of vague discontent? Or was everyone simply digesting the feast of drama they had just consumed?It mattered little to the producers. At the Tavern on the Green party, one of them patted his coat pocket. “Money reviews,” he disclosed. Co-stars Richard Thomas and John Dossett recalled more demonstrative auds right after the election. Biggest reaction in previews was reserved for the line “Four more years of indecision.” “Which is unfortunately not our problem,” Dossett.