It IS a pity--Tsa and Endowment connection?

[S. Stormy she/her]

In Oathbringer, Hoid/Wit tells the story of Queen Tsa of the Natanatans and Mishim the moon. In it, Mishim tries to get Tsa to get up into the sky by telling her how beautiful the star's speeches are and how lovely the view is, saying that it's a pity Tsa can't see and hear the things.

Tsa always responds with "It is a pity, but..." something something something. I don't remember the rest of the story.

But I was reading through the epigraphs of the different Stormlight books, and in Oathbringer, one of the epigraphs says "You mustn't worry yourself about Rayse. It is a pity about Aona and Skai, but they were foolish--violating our pact from the very beginning". The Coppermind says this letter is written by Endowment.

I'm not Cosmere scholarly enough to know what this implies, but I thought it was interesting. Am I reading way too much into this? What do y'all think?

Edited December 22, 2022 by Shallan Stormblessed

[Frustration]

Endowment never knew the Natan people, but she did know Hoid back before the Shattering.

I don't think there's any actual connection between the two.