Because it literally does not matter. I am absolutely baffled as to why you keep trying to place so much emphasis on this.
In PVE, which is the part of the game that you claim to be concerned about, there is no situation in the game where any of those things are going to matter because the Warrior is going to be right on target to use Impending Victory just as easily as the Hunter being able to use Disengage or Harpoon. The only difference is that the Warrior will actually restore more health than the Hunter and only have to spend a single gcd to do so.
If these suggestions went through, Disengage and Harpoon would see far more use in PVE often with no interest in their primary use, just for the health restoration, not unlike Havoc DH Momentum builds that used Vengeful Retreat and Fel Rush for a window of increased damage dealt rather than their mobility factors.
Impending Victory does not give a speed boost. It doesn’t have to because the Warrior has another talent called War Machine that causes every kill to generate 5 Rage and increase movement speed by 30% for 8 seconds.
It doesn’t clear roots and it doesn’t have to. In any PVE fight where a Warrior might be rooted, he has Spell Reflect, Avatar, and 2 charges of Bladestorm should he feel it necessary.
It doesn’t root the target and it doesn’t have to. The Warrior has 2 charges of Charge to root the target.
No. The Fury Warrior has Rallying Cry to increase the entire raid’s health by 10%, Bitter Immunity to restore 20% health and remove all diseases, poisons, and curses, and Pain and Gain to passively restore 2% health every 10 seconds for taking any damage.
Again, you’re placing a terribly irrational amount of emphasis on the fact that I’ve suggested the healing come from existing abilities with other functions.
You haven’t even stopped to consider the nuances of having to use multiple gcds for what still amounts to less healing than what other specs have, or that there will be scenarios where you may find it more important to forego the healing in favor of having access to the primary function of the ability.
Do you also find Vanish to be an egregious offender because in addition to rendering the Rogue unable to be targeted for dmg it also heals for 30% health while Aspect of the Turtle provides no health restoration?
What about how Consecration and Judgment can provide healing in addition to their damage, while Wildfire Bomb and Raptor Strike are only able to deal damage?
Adding additional effects to other abilities is not a new concept nor does it break the game. The combat kit as a whole has to be taken into consideration and what I’ve suggested falls well within the lines of what other melee specs have access to.