Frankly if someone feels passionately enough about a contestant to vote multiple times, I say let them. It's better than those years when no-one feels invested enough to pick up the phone.
Anyway, young, attractive women have won and done well in Strictly before. It's all about who connects with the audience and makes an impact on the show. Perhaps the producers should concentrate on finding younger female celebs for the show who aren't made in the identikit 'bot' factory and find people with wit and something to say.
Louis won last night because the Charleston put a smile on people's faces, the Salsa was a crowd-pleaser and the risky showdance, that could have been a Bacofoil disaster, blew the others out of the water.