Mine's a simple view. Anything that discriminates against women in a sport that is not gender specific is a bad thing. Now, if women want a separate class, that's up to them. Personally I would do what I could to make things such that they didn't see the need for one.
In SWEFTA we run two grades of HFT shooters. We started by putting the top 12 - based on previous years average - in grade A and the rest in grade B. As the numbers taking part grew, we moved the dividing line and made it elastic so that half of last years shooters went into A and half into B. Newbies go into B. If they finish in the top half of the overall table, they go up to A.