Originally Posted by
BloodElf4Life
No, it doesn't XD
Seriously, it doesn't. It's the same fallacy stated over and over again, "Appeal to probability", assuming that this 0.2% will make a difference, while it will most likely never happen. In fact, the probabilities are so minimal that you're more likely to get a better DPS by being more knowledgeable about your class and your rotation than a single legendary will ever give.
Just to give you a perspective, the only case where the 0.2% is valuable is if the boss you're trying to kill is so tightly close to be dead, the tanks are dead, the healers are dead and the boss is on a rampage on the last few members alive in the raid. That's the only possible utility these have. Outside of that, most boss fights kills people based on skills. It's really that simple.
And quite frankly, if you're part of a guild that bench someone because of a lengendary - something even mythic+ professionnal raiding guilds didn't do - then the issue isn't with the gear but the user behind it, or the raid leader.