you're all wrong. halsin's backstory actually has more to do with how the shadorealm formed than with the grove. the grove was what he did after he couldn't figure out how to deal with Ketheric, since he was now immortal. It makes perfect sense being the wandering druid he was before, that he would want to return to that life, and not be stuck at the grove. That's why he immediately jumped at finding a replacement for himself at the first opportunity.

you all are imposing a narrative on halsin that is most certainly not his own.