This conclusion (imo) should have been bolded. I disagree that getting women to "dust themselves off" is an easier fix than if there were inherent bias against women in interviewing.
My theory is that this is tied to (In the US) men being more tolerant of taking risks, which leads to being more tolerant of failure, which leads to being able to more easily "dust oneself off."
I'd imagine if you looked at women in this study who played competitive sports, they would be less likely to leave the platform.
Risk-aversion might also contribute to women being less likely to ask for a promotion, raise, or negotiate salary.
I disagree that "dusting yourself off" as being an easy fix similarly for why I think "pick yourself up by your bootstraps" is not an effective way to elevate people out of poverty. There are more cultural biases to overcome than a simple behavior change.