These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Protagonist-Centered Morality: For all the film's posturing about Colin being selfish for being obsessed with revenge; it glosses over the fact that Moya betrayed his trust by drugging him, offering herself as a bribe to Marcus, and then strong-arming him into promising not to seek revenge despite the fact that she caused all of it through her own selfishness.
A lot of this comes from just how loyal it is to the rules of the series. Everything from how one becomes an Immortal, to The Buzz when they near another, to rules like holy ground being sacred and only one to a fight, are all strictly honored by the filmmakers. Not to mention the animated medium really showing just how far removed from mortals Immortals are for the very first time.