Um I don't think this is actually true. I mean the whole point of a Freak Shows was to make a spectacle of people and things that look unusual, especially physically unusual humans. People with conditions like that can also be considered scary, some are easily scared by those who look different.
I'm aware that people with unusual appearances are often considered scary, disturbing, and sometimes disgusting. Some tal-vashoth cut off their horns to seem more intimidating. Renegade humans don't try to make themselves look like someone with EV to seem more intimidating. People who would be a part of freak shows typically haven't been given positions of prestige in human societies. Hornlessness is not supposed to be like some kind of congenital disorder, apparently. (why not?) (because the Qunari are totally not what you think)
Because having more muscles generally means you are stronger and larger.
And in animals, horns are used for fighting and displays of status. Perhaps not among the kossith, though.
I have no idea what the **** is going on this quote. The quote tags aren't working and I am computer illiterate. Done ****** with it.
[THE FOLLOWING IS A QUOTE]
Anyway, whether or not they would find hornlessness itself scary doesn't really matter. It's more that they find it special and so most hornless Qunari are Ben-Hassrath or other important roles. Ben-Hassrath are considered scary and intimidating to the Qunari and I can imagine important Qunari might be too.
So they could find both hornlessness and big bad-ass horns scary and intimidating at the same time for all we know.
[/THE PRECEDING WAS A QUOTE]
I'm aware there are lore explanations for why Qunari consider hornless kossith intimidating. We have received plenty of them from the devs. I'm not sure we have any idea how they feel about large horns, because they haven't said anything and Qunari lore is riddled (riddled, I say) with maddening, counterintuitive explanations for why they're totally not what you think they are if you just played the games and didn't read BSN dev statements or World of Thedas.* Like how women in Qunari society totally have important, powerful roles, we're just unlikely to see many in the games because they mostly stick to Par Vollen.
Sure, the most high-status Qunari we've seen had enormous horns, but I wouldn't read anything into it. Those horns probably mean nothing to the Qunari. They're full of surprises.
-
Back to the topic of kossith biology:
Shale and Sten joked about humans being related to monkeys in a banter. Are kossith not mammals? How radically different is their physiology from that of a human? Are they actually quite distantly related to humans, but just look like humans because of convergent evolution or something? Shale used to be a dwarf, do you think dwarves are more closely related to humans or kossith? Shale is now a sentient rock statue, do you think humans are related to magical sent rock-creatures in fantasy universes? If not, why not?
*well, there are just a couple of annoying things. but they're all I can focus on atm