Because we're humans? Why do we prefer a particular gender (or not) or prefer tall or short (or not) or thin over overweight (or not) because attraction has a lot to do with what someone looks like....sad to say.
Also because in the game we're not spending hours upon hours getting to talk to them like we would in real life because we're fetching shards or closing rifts so it comes down a lot to how they look.
Still with that small head he must live with a perpetual headache with those huge horns. I'm surprised he's not grumpier.
Even if we accept that as true,which I don't, that doesn't mean that ever critic we make of a person has to be based solely on their looks.
Particularly because it's an argument that gets so boring after a while.
You don't find someone attractive, fine, but others do, that is fine too. Since attractiveness is 100% subjective, there is no way for us to debate over it properly.
You say Iron Bull is ugly, I say his eye patch is sexy, we could go around and around like that forever.
Where as a debate on someones personality or on their actions is much more interesting because objective facts can be brought in with the subjective and there is the possibility of changing someones mind.