(To make matters worse, any apparent evil intent on the part of the "sparklers" is simply becaue of their intense curiousity / absentmindeness attributes.)
I dug out and re-read
Knightfall yesterday concentrating on the section detailing the Shimmering City - which I've been stupidly calling the "Shining" city.
It's very evocative and makes me wish my groups had either run the sourcebook's campaign or stolen the Shimmering City for our own campaigns.
Anyway, while exploring the PCs have a chance of accessing a 3D, psionic, video library of sorts. Several recordings are described and one is rather interesting when we remember Mr. Fugate's later remarks concerning "Baddies from the Core". (I don't think quoting a portion of that recording's would violate the "fair use" concept but, if it does, will the mods immediately edit my post please?)
Here's the description:
One interesting scene shows the large creatures bringing a multitude of exotic plants and animals into areas 10 through 15. The larger creatures spend considerable time doing strange things to these poor plants and animals, in some cases torturing them and telekinectically killing them.
Referee: The primordials are doing basic research on these plants and animals. They don't mean any harm, but they curious and to find out the things they need to know sometimes harms their specimens.
(The bolded part is mine.)
The primordials certainly are made to order to be Mr. Fugate's "Baddies from the Core". They come across part of a Core Expedition and immediately begin disassembling and dismantling the people and ships they've met out of absentminded curiosity while their "super-psionics" play merry hell with the Zho's command structure. It could all really snowball from there.
The two stories really fit neatly together. Who knows, perhaps both ideas even came about at roughly the same time?
Oh, and about the "Why do need a teleportation device? question. In another video, the smaller creatures don't exhibit the same telekinesis and teleportation powers the larger creatures do.