Yes, Niko is stylised as a cat (with whiskers notably detached from the nose and instead dubiously attached to the side of the head), but [insert pronoun here] is not roleplaying as a cat, and a furry would love being compared to a cat, unlike Niko seems to be (there's more nuance to this).
Unless I completely misunderstood what you meant by "a furry" and you were just asking if Niko is a cat :)
Are kids that wear those panda hats furries too?
Dr. Zbigniew Religa, operated on Tadeusz Zitkevits, no idea who the assistant was.
One of the unique aspects of Oneshot is the interaction between Niko and the player, which quickly forms a bond and results in a memorable experience.
In movies you are an observer, and apart of some fringe cases, you never have any meaningful interactions - you usually just enjoy the ride, hands-off.
Despite all of that you can probably still make a good movie in Oneshot universe or with Niko&co., and if Niko would be the focus, then I would expect it to be set in a "dream world", where there were no player interactions (IIRC).
Knights and Merchants is as much a city builder as StarCraft is, which is to say, not at all.
Other than that, an interesting article.
I'm good, thanks.