Caught this up on the E PvMP forums that the freeps say that they need to cleanse the hoardale multiple times as well as the hotspots to make the poison go away... that doesn't jive at all since us poisoning the hoardale does absolutely zilch.
So... am I wrong or the freeps don't know their own side mechanics?

If they cant get the murder holes up cos "the quest keeps bugging somehow!" then yeah, it's safe to assume that the majority of them have no clue what is going on. The ones that do have an idea, have probably creeped with us at somepoint.