Even if it there was a 50% chance of being picked, to have it happen (I've been counting) 8 times in a row so far is highly, unlikely -- 3 in a thousand. At 10% we're talking millions-to-1 that it's purely random.
I just don't buy it. Humans are involved. Humans are not cryptographic-grade RNGs.
Airports bunch flights together so they can cut costs. It's always busy. As for "self-selecting the optimum time", I don't have to. I can self-select an interesting beard.
I just don't buy it. Humans are involved. Humans are not cryptographic-grade RNGs.