As much as I may not like it, Jagex has made the argument that 6th age quests occur in the order in which they are released (world events slot into that timeline the same way). So unless it's an exception, HW would have occurred after MPD, and the kin wouldn't have had the Siphon.
Even if we make the assumption that HW can occur prior to MPD, however, the Siphon would have been broken at the time (and it took Sliske with Jas's help to repair it) rendering it rather non-useful for the Kins' purposes at the time.
25-Oct-2017 23:33:29