I do remember if specs in oasis went back to island to reset and you got close again, they'd all just start coming if you hadn't zoned/camped/mem blurred.
Methinks that's because low hp specs would fire up their own version of gating back to their bind under certain conditions.
Not sure if they'd just stop chasing due to distance, but really strongly remember a spec dying surrounded by gate/invis bubbles graphic
[You must be logged in to view images. Log in or Register.]. I think their behavior was to do this if they were X distance away from their spawn point and nothing else was on their threat list and not as some kind of flee mechanic. The kill being that someone zoned with specs after them, and one got finished off while the others recalled.