I thought the so-called secret resales were just the few dregs of cancelled tickets that occurred after the resales?
The so-called secret resales were just the tickets that were cancelled before the cancellation deadline in May. Quite unlikely cancellations at that point are driven much by the ground conditions in the previous year.
By the way, Hellfest promoter confirmed that Foo Fighters planned to tour Europe next summer but cancelled it.
Muse were the replacement elsewhere. Considering they are not here Foos probably were due to play Nova Rock's Saturday. Headliner combo of Korn / LP / Slipknot / Foo Fighters could be very impressive.