The distribution of the coin followed the published schedule and the distribution was smooth over time, possibly closer than any previous coin, because the adjustment algorithm works extremely well (it adjusts on a launch pretty close to the actual hash rate within 5-10 blocks). That's the definition of premine/instamine as far as I know it.
You mean the emission followed the correct curve. The distribution was in those in the know's pockets.
Not really, many people mined the coin, you can go back and look at posts from dozens if not hundreds of people who were mining it (and those were just the ones posting). Some mined more efficiently than others, just like every single coin in existence, including this one right now. You don't know there are optimized X11 miners that are faster than the public ones?