Board Thread:Questions and Answers/@comment-39165692-20190522003219/@comment-27724978-20190601043436

Apparently.

Yeah I'm wrong on that.

Maybe Grey Worm begrudgingly understood if he immediately executed Jon the Unsullied would have to go into another war and almost half were wiped out in the Battle of Winterfell.

Grey Worm doesn't want a new ruler but he still made a promise to Missandei that he and the Unsullied would protect her people.