Absolutely not. Diversity should be given a broad definition. However, if you want to send a signal that you want to increase women's participation to 30% or 50%, you must make it clear that this is what your goal is, because you can have diversity on a board, or you can say that you have a diverse board, and yet you will not have the gender parity or the gender representation you want.
On February 21st, 2017. See this statement in context.