Doesn't it simply express the attitude of the fictional character Arhu, not Larian or anybody else? If you fault the publisher every time you meet an assy character in game, well... have you considered the implications any? Darth Vader is a bit of an ass in many regards, and I don't think it means George Lucas is one, necessarily.

That said, if you feel disregard or hatred towards animals is a theme in the game and in a context that you suspect the publisher is trying to put forward a political agenda, that may be cause for concern. But I hardly think that quote alone is enough to suspect that smile