I'm not sure if this is a bug report or not, so for now it's in story mode.
I'm playing a cleric of Vlaakith, trying to go full gith motivation and not care about the grove, the goblins, or any of that. Just want to go straight to the Creche. I go to the mountain pass, and discover that at level 4 the undead warden fight at the start of the pass is unbeatable for me. Even fighting the lady who wants the githyanki egg saw one of my party members felled before they could make a move. I decide to level up a bit more, and also out of curiosity go back and see what happens when you skip helping the grove. It is, predictably, full of thorns. I was curious to see if the gobling camp had cleared out but pretty much everyone is there. I went and talked to Minthara and gave her the location of the grove, telling her it's covered in vines. She says something to the effect of "That won't stop us. Now move out and get ready to attack." I was interested, because I would love to see what happens. I go back to the grove and... nothing. She never shows up. I go and talk to Dror Razlin and Gut to see if it changes anything - nothing. Minthara just seems to be gone, with Razlin expecting me to help her. No quest notes, or anything.
Is this a bug? Is there supposed to be an assault on the grove after the rite of thorns? How is this 'supposed' to resolve? Will I ever see Minthy again?