Earlier quoted context omitted.
Does it matter? I'd put the emphasis on the outcome: women being able to express their opinions and contribute to the conversation / problem. Being interrupted (while speaking less in the first place) seems counterproductive to that end.
So its an argument between equal opportunity and equal outcome. It sounds like people want to shame men so as to gain an equal outcome. Is there a better solution? I'm being serious. (At the very least, we don't need to accuse men of being sexist if is proven to be a biological tendency—we should call a spade a spade)
The equal outcome is men and women both being given equal and fair opportunities to express their viewpoints.
If this isn't the case because {reason}, then to me that's justification enough to attempt to redress the issue through modified behavior.