It really isn’t that hard to complete. You can get 5-15 stacks in single TF. The real problem with the talent is it competes with Friend or Foe which in reality gives you much better mobility without need of a quest. Double sweep means you get 1-2 extra sweeps in battle while leaving your Q with 1/3 or 1/4 of potential targets it gets due to range and allies working as targets.
I do think they should swap the 2 charges and removing terrain collision so it would be the reward. That way extra W would help on lane and jungling supporting his role better. It would better encourage the TF aspect for him too with synergy on 13 and 16 talents. Only way you don’t complete the quest is if you just tunnel vision camps and split push all game in which case it really doesn’t matter what level 4 you would pick anyway.
Wut? Are you teamfighting against 3 tanks and 2 healers?
As Illidan, you usually have to stay a bit in the rear at the start of the fight until some CDs are burned, then you go in, wreak some havoc, get out again. You also go low pretty fast, especially if you don’t have your defensive talents yet.
5 is already a lot, considering you usually cannot stay longer than maybe 2 rotation of your abilities until you have to bail.
4-5 is the bare minimum you get in TF. Each battered assault proc needs 2 hits which is usually from backline + backline or front + any and Q to your mark(this is why friend or foe with range is so much better synergy in reality than unbound). You generally don’t hunt in until enemy sends somebody to deal with you on lane or there is otherwise opportunity like free pick due to bad positioning or enemy blowing their load early.
Yeah I wouldn’t pick unbound unless enemy has at least 3 melee heroes with how it is now (or if I feel like going through walls is a must for current map/comps).