There are two main problems here:
1) Believing in BS leaks, of which we have like 10 different ones
2) Not applying common sense and previously acquired knowledge of the game to things you hear
No, it won't happen
3D combat in WoW is really Not Good.
I'm not sure exactly why, but judging depth or distance in space, it's just hard. For example, you're underwater and you kill something at range. You want to loot it, so you aim at it and swim.
If the loot cursor didn't "enable", would you really know when you were within range? Now imagine melee combat. No thanks.