What's the point with that quite lackluster story in Endwalker?

[Kozh]

So sundering the world is not really destroying it, but merely creates 13 other possibilities in addition to the original.

Holy crap lmao. "No, I don't kill them, I only blown them into 14 pieces. 7 of them will be destroyed though, but that's a sacrifice I'm willing to make". Sounds exactly like what genocide apologist would say.

I was remarking that he’s the only one who showed any ability to effect change dynamis, limited as that manipulation may be.

You should do the msq again, hermes doesn't have any ability to effect dynamis. Elpis flower merely respond to any external emotion by changing its color.