Could be, but the Overmind felt that it needed Kerrigan to overcome the Protoss before it ever even learned of the Dark Templar. Still, it is the most reasonable explanation I can think of, so I'll probably go with it.
No, the Overmind did specifically seek her out. Not 'her', Sarah Kerrigan, but 'her' an extremely powerful human psychic. That's the whole point behind the Psi Emitters, to abuse the Overmind's seeking out of Terran psychics by creating a 'Ghost call', so to speak. And the reason it specifically sought her out was to use her against the Protoss. The Overmind considered her the determinant in the struggle between the Swarm and the Protoss.
Well, yes she was, actually. The Overmind couldn't find a way to counter the might of the Protoss, and this drove him to the verge of despair. It quite literally considered Kerrigan the Swarm's only hope against the Protoss. She was that important to it.
That explanation makes me cringe. I beg of you to allow me to ignore it.
I'm not sure what you're talking about. I don't remember the Overmind ever wanting to escape Aiur?






