Well anyone making the comments is clearly reacting in an honest way, meaning I don't think they're mocking the piece. I don't think it's a joke to be "in" on per se.
It's more that Michael Bennett and I both enjoyed the experience of the play more than the play itself, and that's ok. I would enjoy the experience of being in the audience of Ricki Lake or Jenny Jones more than the programming itself too. There might be people who actually love the play, which is fine and valid.
I personally just don't have a problem with the vocal reactions because the play is such frothy stuff. I think it was written, directed and acted to elicit these reactions so why not go for it. Hell I even started to chime in because I got so caught up in it all! Why I probably came out of the theater loving it.
Marie: Don't be in such a hurry about that pretty little chippy in Frisco.
Tony: Eh, she's a no chip!