The point isn't really how many excuses one can come up with to explain why nothing is ordinary.
It's more about mundane the "extraordinary" becomes when you try to make everything special.
It's perfectly fine to have an aberration from the norm (the gnoll pack leader in this case). Less so when you are making up contrived crap every two steps to justify how nothing matches the standard baseline.
Cool your fire, friend, try not to dictate the flow of conversation just cuz it doesn't perfectly align with the sentiments shared in your OP. All we're doing is discussing our opinions and making slight jests at the vaguely possible reasons that Larian may or may not have made the monsters the way they did. What exactly was the point of posting on here if not to invite people to talk about their own opinions?
Me being in favour of making changes to monsters for narrative reasons doesn't mean I'm 'making up contrived crap every two steps', I literally have also criticised some of the monsters' implementations myself as well. It doesn't have to be just for or against. It's more than black or white.