I believe the issue is with the genre of higher fantasy that you have the expectations of epicness.
The Norn are all stoic hunters, the humans all heroic, the Charr all powerful, Asura are all genius inventors, etc.
However by constantly applying this same trope to every set of dialogue, you create a feeling of staleness.
After one hundred Norns all talking about glory in the exact same tone of voice, you lose their individuality. The characters become defined by their races instead of colored by them. Yes, a Norn might have been raised in a society that glorifies hunting and power, but would -all- Norn have the same “For glory! They shall sing my songs in the halls of etc etc” sphiel?
Cause currently, they do.
I think ArenaNet has fallen back in to the old trope that everything has to be epic. No character must show weakness. It must all be amazing. They all rise to the occasion and they are all heroes. They never once falter.
Hell, we even miss the one crowning moment of possible moral ambiguity in the series, the defection of Logan.
It’s far too black and white and far too unbelievable. It works in a limited sense, but unfortunately, it reduces the believability of the character as a multi-faceted individual if all of them share it.
So I think a bit more work needs to be done to flesh out your side characters. We don’t want all of them to be simpering cowards, but it’s not bad to hate a NPC. We don’t have to like them all. It’s more believable if there are some we like and some we find insufferable. It also adds to the story immensely if they are redeemed or not redeemed, versus us going in knowing that they are:
A) Either going to be heroes and succeed
B) Going to be Heroes and die trying.
I’ll be completely honest, I really didn’t buy GW2 for the story telling. I love the game mind you, but the NPCs could use some serious work.