Ghosts of Dathomir bonus tier

I'm level 82 and today was the first time I got to play bonus tier

I did the bonus tier with my Phoenix Squad all G9 level 80 with Chopper at level 82. It took a long long time (20 mins on 4x auto) but I was not in any danger whatsoever and 3* it to get the Zeta, 5 Omega and the minimum of 7 ghost shards.

It says level 70 in the update notes but I assume it’s realky level 80. Can anyone confirm this ?

Thank you !!! This is what the original update notes said
Ghosts of Dathomir Special Event
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Rumors are spreading of strange happenings on Dathomir. A mysterious chant emerges from the caverns of the Nightsisters. Gather your strongest heroes and investigate this mysterious occurrence.
Ghosts of Dathomir will run on October 31st, starting at 7am UTC.
There are no forced units required for this Event, so bring your best squad!
This event is level banded starting at level 20, and increasing every ten levels after that. All players can participate once they have unlocked the Events feature!
Play Tier 1 to unlock the new Nightsister Zombie and Nightsister Spirit units! A Bonus Tier, with more generous recurring rewards of these two Nightsisters, is available starting at level 70 and above.

That is strange. because Im sure I was over level 70 at october 31st, but i wasnt able to do it back then

Has anyone beat the bonus tier I went in with Zaul,Zader,Papitine Niles and Dooku and could not beat it

@mitchell_1kia
I beat it with (tier 1 and the bonus tier, got the zeta and 5omegas)
7* Boba lead g9 (aoe and leadership omega)
7* Kylo g10 (basic omega)
5* DN g10 (basic and annihilate omega)
5* R2D2 g10 (basic, smoke,burning omega)
7* Grand Moff Tarkin g10 (basic omega)
all level 82 except maybe one or 2 level 80 or 81
3 starred with R2 being almost dead at the end
boba died a lot but since he was alive at the end i could get 3 stars

I'm level 80.
I defeated the bonus tier an hour agowith RogueOne squad.
It was really hard ....

I think originally it was announced as a level 70 requirement then when the event first released it was level 80. Not sure though. But regardless, it's level 80 now