Its not about numbers... its the opposite actually. It deals the most damage, so you cant skip it, and its made even more powerful for assassination, and that makes it so assassination will most likely have biggest ratio of white damage/total damage of all 3 specs... quite strange indeed for spec called assassination. Its the fact that it makes gameplay worse for no reason. If it didnt exist and all other stuff was buffed a bit, you would still deal same damage, but with better gameplay... so it is 100% bad thing, in assassination at least.
If you think people dont like it cause it doesnt do "'pow boom poo huge damage now'" then you completely missed the point. Other specs have gameplay benefits from it, energy for outlaw and energy+cp for subtlety. Assassination gets JUST damage. If they made it weaker instead of stronger for assassination, but added some effect that would help the gameplay(energy regen) of the spec, then fine, but they did the opposite. If they wanted to add maintenance buff to assassination, "less attack speed than other specs and more energy regen from it" way would balance its active and passive effect on spec and wouldnt completely ruin the gameplay.
Though im having a hard time understanding how some people can just accept that your gameplay has been made worse for no reason and for no benefit at all. Your damage will be balanced with it in mind, so that means you will deal less "active" damage, and on top of that, your gameplay will be worse cause you will have to waste resources on it and will have even more ramp up... as assassination, that has most ramp up already. Its like they thought that spec was too fun, so decided to make it less fun for some reason. Quite strange stance in game development.
It literally makes no sense what they did. It doesnt fit the spec at all(white damage auto attack assassination... so much sense), its made even stronger for spec (it would make more sense for outlaw/combat) and it provides absolutely nothing but shift your damage source from active to more passive with added annoyance of maintenance buff and even more ramp up. It is pure insanity/laziness/incompetence from Blizzard and its completely negative change. The way they've done it cannot be defended... so stop trying, especially by making up stuff thats not even an issue("it doesnt do big damage" when in reality its all it does, and that is the issue).