Not sure how many times Kellie-Jay Keen has to repeat that any female person who wishes to speak, as long as it is speaking and not stealing a microphone or merely chanting mantras, is welcome to speak at the Let Women Speak events. What ever their view.
And I think that it is pretty clear from the number of guilt by association claims arising from people that women should never have allowed into the crowd to listen to them speak, that no one is there checking who is simply standing or sitting in the crowd listening respectfully. And that any respectful attendee is therefore 'welcome' regardless of a person's beliefs.
Considering that Jean Hatchet managed to come and speak on the weekend in view of her past relationship with Kellie-Jay, I think that shows that yes, even people who have major issues with things that KJK says and does can come and speak.