It's definitely not the first company to go public without any women on the board. I would wager nine out of ten companies that went public in the last twenty years had no women on their boards, either. And there was nary a headline about that.
It's not good enough for Twitter CEO Dick Costolo to only have one woman on his board. One is too often a token. On a board of seven -- it should be at least two. No one wants to be a token, not even women seeking to serve on boards.
We now know that having diverse product design teams creates better products. We also now know that having women on boards makes companies more competitive. So why would a company build its management team and board entirely from men?