This new special is clearly a feeble pvp attempt at copying one of the effect of upon a wave of summer (long range and slowing down opponents, helps us to catch fleeing targets). Here there is only a mild dot damage and a root, based on two different evades for landing. This could be a great idea, but disharmony is pretty much used only for pvm line, mostly for healing efficiency, and even with the changes we see ahead, I doubt people will want to perk up the full line and give up unstunnable, spatial displacement or the brawler perkline just for a new special and a not so effective way of healing in pvp (even before heal changes).
Therefore I'm asking you to reconsider making it a special that will have a use in pvm, where rooting a target for a short time every time you fire the perk for its minimum damage might be more annoyance than anything, and more along the genereal idea of the perkline which is heal / drains / damage. In my opinion, something along the colossal health last special (a massive hp drain) would better fit the bill.