“Lesbians Respond Differently to ‘Human Pheromones,’ Study Says.” is probably the purpose of this study—to show that lesbians are genetically different from other women.
Of the lesbians I have seen, many tend to be unattractive man haters.
Every species has its mutants, only the human species can overcome its defects. Some choose not to. So yes, if a manly woman likes women, its her choice. If a lipstick lesbian likes women, its her choice. Same goes for the girly men, it’s their choice to go in that direction.
And if that is a legitimate interpretation of the data, then the validity of that conclusion is extremely significant.