I guess my problem is still that you, as a player, know that the Absolute is mind flayer tadpoles whereas Minthara & Dror clearly don't.
I believe you mean presume.

I mean we dont know what the Absolute actualy is ... it could be Illithid plot, who are pretending to be a God ... but it aswell could be actual God, who is simply using Illithids to reach his own goals.

In my opinion, Larian showed that their writers are capable enough to now blow the main plot if first half hour.

I suppose I'd be happier if we were able to talk to Minthara more about the cult's goals and specifics on the powers the Absolute grants us.
I would love that dialogue option ...
But i gues my responce would not make you happy ... since if that would be written by me, i would bait such options to dialogues, just so you can blow that you are not actualy part of the cult (since you would know otherwise) ... wich, by the way, is the only thing that keeps them all from attacking you on sight.

But as i said ...
I would love that option to be there.

The monetary reward Minthara will apparently grant us is fine, but information about exactly what we're getting into is better.
But that is according to situation impossible.
