I mean, the majority of shuls have long since gone without a mechitza.  I'm not Orthodox myself, but why begrudge them their custom when there are alternatives?  This article reminds me of the radical Jewish feminist Merle Feld, who wrote some years ago about how, when she was mourning her father, she specifically chose an Orthodox shul in which to daven every day, and repeatedly insisted, contrary to their custom, on reciting kaddish aloud, to the point where they finally let her do so behind a screen.  Given that she's not Orthodox herself, and that in her community as I recall there were other, non-Orthodox shuls to choose from, I can only imagine she chose the Orthodox one not out of personal preference, but in order to agitate and prove a point.

Again, I'm not Orthodox, and I'm not defending the mechitza or the prohibition against hearing a woman's voice.  I'm just saying, as long as the Orthodox don't infringe on our right to worship as we please, we shouldn't infringe on theirs.