NO RNG IS PREDICTABLE AND BLIZZARD IS LYING TO US.
On a more serious note, some variance protection would be nice. Especially with PL that should be possible.
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That is just a really bad comparison. Getting 3x the same item is around a 6.66..% chance. Losing the lottery is like a 99.999999999% chance.
But yes, probability and common sense do not mix very well, so claiming some random system is flawed by personal experience with such a small sample size cannot lead you to any conclusion. (and I doubt that OP is 100% accurate, I mean who wouldnt start screenshotting that after it happened the 2nd time).