I hope I don't get in trouble for this and I say that because the site admin disagreed sternly with my POV the other day but I believe that Katie in this instance was not directing this slur at a gay male so I don't know see how it can be construed as 'homophobic' at all.
In all likelihood she was belittling a straight guy for the crime of riding a bike that seemed 3 or 4 sizes too small for him hence calling his choice of ride 'effeminate'/poncey/etc, she unfortunately used a gay slur to do so.
Not that I'm trying to make excuses for Katie, I don't even like her but I just think there are far more impactful instances of homophobia that have wide reaching ramifications across society where it's worth raising a stink about than the drivel coming out of the mouth of a silly ignorant bimbo driving to a concert. *shrugs*
Complaining and bringing attention to a fairly insignificant incident in the grand scheme of things does no favours to the cause imo; it probably does the complete opposite and serves to undermine it instead. Just my 2 bobs worth.