The Drow Halsin killed before he met us had q tadpole in stasis too, qll the true souls tadpoles are in stasis, its why they arnt mindflayers
The tadpoles could be designed that way by the absolute, which would explain why the true souls aren't turning. I don't recall the hag explaining what the shadow magic did to the tadpole, just that it was tampered. Seems like misdirection.
