I made a point just a few hours ago to speak with this... version of Thanos that is here.
While I do not trust him entirely, for obvious reasons, I do believe he spoke on his on behalf and NOT on behalf of Queen Daenerys. I have told him he will not in any way goad or push ANY of Galador's lands to war, or he will be punished.
And I have no qualms with admitting that by 'punished', I mean 'destroyed'.