I feel little sad that UnknownEvil seems to be the only one who bothered to read my post.

I hope im not. It is an awesome idea that should at least be added to some degree. I am 100% positive that it would make the game a better experience for most of the players.
Right now it seems our affilliations are pretty set. Killing Nettie does not even have an impact...does that even appear anywhere in the conversation with halsin?
Even if we were only defending ourselves, we were alone with her so noone really knows what actually happened. So after that encounter leaving the grove normally is fine, but coming back later, after she was found dead after our party asked for her should change something.
As was already mentioned, so many of our actions do not impact where they logically should.
As of now i cannot even imagine a way to play "evil" so it feel satisfactory. A way to ally with the absolutes forces to infiltrate and later betray to get rid of the tadpole would be nice.
Also, if larian wants certain groups to be friendly from the start, like the grove for example, there would be better ways.
The initiation of the grove fight could start with us meeting aradins group while they flee past us and the chasing goblins attack us...that way we would just fight against goblins that attack us (done right that could even work with a goblin PC).
That would also make it more reasonable that the grove is accepting us, no matter the heritage. (even if certain race choices should still enounter problems).