touches upon a race like the Preservers from TOS
This one I have never understood. The Preservers maintained status quo by abducting a small cultural subgroup of an existing species a few hundred years ago. "The Chase" dealt with folks who changed everything by introducing millions of all-new species in a grand scheme spanning aeons, four billion years ago!
IMHO, seeing the Preservers as tying into "The Chase" is akin to seeing "The Savage Curtain" as dealing with the extinction of whales...