Like i already said i play in this setting since Advanced Dungeons and Dragon. And more i were learning about the situation more i were thinking ((uh oh.. This is going to be very problematic)).
For what concerns me Larian was true to the setting when designed this situation. We also have to keep in mind that for many players this is a setting they know soley by the Videogames Bg/Bg2/Icw/icw2/nwn/nwn2 in those games excluded baldurs gate 2 potrayal of the druid were largerly: We are the nature guys that loves to hugs trees
For me it's not whether they are true to the setting, because I agree they are. My point was that Kagha and Halsin, as they are, feel unnecessary. The conflict between the druids, trying to protect the grove because it's a sacred place, and desperate refugees, whose presence is putting the grove at risk, would have been more interesting without the entire good vs. evil druid leader subplot.