I don't think there is much evidence that other women would be put off the rowing team if they didn't feel themselves up to scratch in the beauty stakes. It would be like saying men wouldn't join the fire service unless they looked like a bodybuilder. And I would also say that the women who have chosen are a fair assortment in terms of physique, looks and musculature.
I think it is misrepresentative to suggest that women do these projects purely for the gratification of men, or that all men will lust endlessly over such pictures, or that women might not even pose for such pictures to show off to other women. Feminism - or the bit we have discussed in here so far - seems to have everyone's role in society so firmly nailed down, so pre-defined, rigid and uniform, that there seems to be no room for self-expression, for freedom of though or action, for any chance to break the mould. If everybody is to be judged by such rigid, unbending standards - you as a woman MUST be oppressed and lusted after, you as a man MUST oppress women and lust for them - then what hope is there? Do you only see a bleak, unchanging, subjugated future for women?