So I've been thinking about the various conversations in the temple my conclusions are:
The only thing the Absolute asked them was: 1. find where the ship missing tadpoled people went and kill them (the kill them is confirmed from goblins ambient discussion inside the Temple) 2. asked the goblins to aid a drow party to raid Waukneen's Rest. The drow had the mission of kidnapping the duke and bringing him back to Moonrise Towers. The goblins were just muscles. This was done pre-ship crashing, if you run from the beach to Waukeen's Rest it is already burning (I tried it). 3. For the rest, the Absolute doesn't care... which is what the Priest of Maglubiyet is complaining about, a real god would keep his people in check.
Someone "higher-up" doesn't trust them, otherwise no reasons to have a scrying eye floating around the base from someone at Moonrise Towers.
The goblins just want to raid and pillage, while Minthara wants to become the Absolute's favorite. I think destroying the grove is a task she invented herself to achieve that (as she said it will make them the Absolute favorites) and she's using the goblins as her expendable grunts to do so (and you too if you accept to participate).
