1. She is skipper of her vessel and this could compromise the boat's safety - if true, she hasn't been professional to herself or to her crew.
2. It may not be true - there's to be an enquiry - it could be a crew member or whoever with a grudge who has 'outed' or 'smeared' her. Time will tell.
3. An aside, I was at a wedding recently with a 29 year old captain of the army who has done three tours in Afghanistan. He is dead against women serving with men in the field saying that they bring another dimension of responsibility and issues in the field that he doesn't need......an all female company, why not? And he is not a misogynist, just the practicalities of live action and communal living.