Re: parallels could have had a character from ds9
I think he's looking at it the other way around, DS9 character appearing on TNG. Sisko getting over the loss of wife earlier and getting command of the Enterprise after losing Picard to the Borg and requesting Jadzia to be on the Enterprise as the Chief Science Officer and Data as Chief Operations officer and Second Officer.
It keeps Carol Anne very close to it and away from the spectral light. It lies to her. It says things only a child can understand. It has been using her to restrain the others.
To her it simply is another child. To us it is the beast.
Now let's go get your daughter.