I agree that she needs to get runway lessons ASAP. & the outfits she got are a disaster, but that is not her fault.
As for her looking "cheap" let me tell you, just because she's blonde & have big boobs it doesn't mean you must only model for Maxim or Playboy ... Girl has an amaaaazing body that 99% of guys find hot & if you do a Poll on the streets between Kate or any HF model they will all like Kate better, she has a massive huuuuge commercial appeal to do things such as VS, GUESS, Beach Bunny & everything she is currently doing. She also has a beautiful face, just look at the close ups from the runway show. & beauty is in the eye of the beholder anyways
Probably she will never be on VOGUE or doing a show for Prada, Gucci, etc ... But neither did Marisa Miller or Brooklyn Decker & they're both way more popular in the regular people than Sasha P or Freja for example & they're both doing great in their own ways ... Every model has a different appeal & target.