I think the issue is that she kept the clothing with the semen, which speaks about planning and cunning.
People talk about the power imbalance, but at the end of the day there are a lot of people who sleep with their superiors because they want to rather than being coerced (explicitly or implicitly). I don't think we'll ever truly know if she was coerced or not, but we know for sure that she kept that clothing.
And I think this is the tipping point for most people. Everyone understands that she may have been a victim in it.
People talk about the power imbalance, but at the end of the day there are a lot of people who sleep with their superiors because they want to rather than being coerced (explicitly or implicitly). I don't think we'll ever truly know if she was coerced or not, but we know for sure that she kept that clothing.
And I think this is the tipping point for most people. Everyone understands that she may have been a victim in it.