Question about The Rising Event’s cutscenes and Shadowbringers

[Shicq]

I have been trying to see every cutscene in-game for this year Rising event at the repeatable quest part where you collect 1 of 3 types of bottle.

Since the cutscene that will come up each time you hand in a bottle is random, so far I saw all cutscenes except one

The cutscene for Large bottle, Letter V, where G’raha Tia minion appears.

I had been trying for hours but never got that cutscene.

I looked on the internet and saw that the message of that cutscene is related to Shadowbringers’ story.

My character is at level 70 and still haven’t started Shadowbringers yet.
Do I have to complete Shadowbringers first to be able to get Large bottle, Letter V cutscene in The Rising event?