What exactly is wrong with gorillas? They're big and strong, yeah, but also intelligent and rather gentle, especially compared to their very violent cousins, like the chimps and...us.
Adaar is big and strong. The qunari are not particularly hairy, so I don't see your objection there. (As a rather hirsute man myself, I am vaguely offended. Am I actually a woolly, groping barbarian?
)
Personally I like Adaar and Cassandra because I can see Adaar being fascinated by how this small woman manages to be the most terrifying force on the battlefield, and Cassandra wrestles with feelings of doubt because the Chantry and the South do not look kindly upon qunari, even those who have never really encountered the Qun.
.I think they look as good as the females do. Not Arishok levels of 'Hot dayum awesome art design', but what is? I've seen some Adaar's that are some magnificent looking men with the horns of a particularly mighty mountain goat.
Is it only Adaarmancers that have something wrong with them? Are players who romance Cassandra with Cadash secretly small, ugly, bearded men that want to live out their fantasies? Are women who play as petite and blonde Lavellans giving in to the societal pressure to look a certain way? Are we also to hold them in contempt?
Or perhaps people just have their own tastes on what is cool?
I am confused by all of this. 
As for the religious question:
Cassandra was the right hand of the Divine. You don't get that high up by collecting bottle-caps. She struggles with her faith, but she very much knows what she is trying to believe, and chose the Chantry path independently of the Pentaghast family, who I assume would have preferred to have gotten a sweet marriage alliance with her instead of her incredible skill going toward the Chanty's benefit.
I am an atheist. I was raised by ??? parents from a largely Lutheran family. They refused to have any religious influence on me so that I could make my own choice. In the end, it turned out that they were agnostics that leaned slightly on the Christian tradition. *shrug* I chose being an atheist because it was the path that was right for me.
I know a Catholic who, in the span of a half-hour, claimed that: Catholics aren't Christian, Catholics worship the Virgin Mary and not Jesus, and that Marc Antony the singer is superior to Marc Antony the Roman. All of these are insane claims. He was 'Catholic' because his family was Catholic, but he never made a choice. He didn't believe, he didn't understand.
I have a Christian friend who laughed his ass off at that anecdote, and was raised by religious family members, and has chosen to be Christian and has sincere and well-thought out beliefs in that respect.
Now, I believe if he had been raised by Buddhists in a Buddhist country, for instance, he'd probably be Buddhist. So family influence and access to a religion plays a part. But if he'd been the first to hang out with the local Christian missionary in that alternate universe, it wouldn't surprise me. Some religions are better tailored for a person than others. Absence is the fitted suit for me.
Tl;dr for Avejaved: Adaar is not a gorilla and there's nothing wrong with players who ship Adaar and Cassandra. And everyone who has religion as an important part of their lives rather than cultural garnish has made that choice for themselves at some point, regardless of family influence.