Whatever is said here, it’s going to get dismissed as “It’s random chance - you’re just extremely unlucky”. And, so far, I really haven’t seen anything to make me think it’s more than that, even though I’ve played for something like 15 hours since the event started and got nothing. I think it’s a symptom of the low ass RNG as usual.
It definitely could be a bug somewhere, but no matter how much we insist on that possibility they’d never admit it even if it was; it’d be terrible press. Tough truths.