Damn, I thought my roll was good, but you managed to 1-up it.
Congrats.
EDIT:
Ok, it's official - the gachas are out of whack right now.
Check out this pull:
My 2nd gacha-pulled rainbow, even matching with BB lorewise. 3rd counting the anniversary Alstroe Maria.
I suspect there may be some bug connected to the new NG Premium gacha and possibly all gachas got the insane 10/20% rates.
Just my gut feeling though.