No luck (bad or good) involved at all.
Editing to add a short epilogue: James Proctor had two options at this point, either make his next putt from the footpath where the disc crossed OB with one penalty stroke, or abandon the throw and retake the putt from the same position as the first time with a penalty stroke, so of course he went with the latter option. Only problem is that his putter is all the way down there and he did not bring his bag up the hill. So after Gannon made his putt, James borrowed Gannon's putter to finish the hole. This is perfectly legal to do.
