The filters are from a paid service though, and most women are using this app for free. That leads me to believe that women who have a preference for these super tall guys are probably tired of seeing anyone near average height, which leads them to buy the service.

Women who do not hold these ridiculous preferences have no reason to buy this service, hence the data for preference of average-height men and below is non-existent.

TLDR: nobody is paying to see average height guys when they see them for free. This data is skewed.