I think that article seems to miss the point, to be honest. There's no need to conflate furries with LGBT people: even if they were they were all hetrosexual hating on them would still not be OK, like any other kind of discrimination based on personal preference.
Except that dog whistles are not always dog whistles (there are people who dislike furries but are generally positive towards the LGBT community), and in this case the dog whistle in itself is hate towards a group of people.
