So, I don't think lag really helps out DM all that much, pursuers maybe if the user is try to roll into it, but other than that, lag doesn't help all that much.
I think the reason people hate it so much is that it counters aggression when being an agressive melee was easily the most viable PvP build. If your opponent is super aggressive it's difficult for them to dodge pursuers as well as it makes dark bead more powerful as more orbs can hit. I think this is the core issue people are having since before this being aggressive was heavily rewarded vs being cautious in PvP. This is a fairly fundamental change in how PvP works and I think because of this change, many people are angry that their tactics that work against every other build don't work the same against the new magic.
Just a thought I had.