Most audience members aren't Broadway fanatics. They don't have a clue who Kendra (or Stephanie, for that matter) are, nor do they really care. Of course in the OBC Kristin got entrance applause. It's Kristin bleeping Chenoweth, and a New York theatre crowd.
Oh, and I just want to point out that this made me laugh ->>
"Perhaps the audiences in Toronto and Chicago are there to see and enjoy the show for what it is and not treat it like it was the reunion tour of the Backstreet Boys."
There's always room for pathos - and jazz hands.