Bradford T. Kenney was contemplating a new opening of a new season, always a time of heightened anticipation even though he's had quite a bit of experience with such things. This year is Kenney's 16th season as executive artistic director of the Ogunquit Playhouse in the popular seaside town of Ogunquit, Maine. He's also opened seasons as the artistic director of the former Foothills Theatre in Worcester from 2001-05. But speaking on the phone the week before the Ogunquit Playhouse was about to open its first mainstage show of 2021, "Monty Python's Spamalot" (Jun 16 to July 10), the feeling and the look were distinctly different this time around.