Even the idea that the illithid responsible for our tadpoles serves the Absolute is supposition; our tadpoles are distinctly different, even from other 'true souls', and it's not too far fetched to think that our illithid might have been working against her.
That said, the Absolute is probably either an Illithid creation set as a ploy for a plan... or else it's Tharizdun up to his usual tricks again ^.^
