Archery Mastery

Root and shoot does work it is just less effective. I probably complained a few years ago too about archery DPS on rooted mobs but Rangers are supposed to be highly skilled outdoor adventurers so it frankly makes sense that their spells have outdoor requirements and that solo archery is most effective in a big open space (think snare and long range bow here for max solo damage). Long range allows you to stand still and shoot while a snared mob works its way towards you for optimal damage.