None of that is evidence, that’s not how evidence works. None of that proves what you are claiming, you are only inferring it from that.
If HotS, for example, called him the former High King, then that’d be evidence. Not mentioning it doesn’t mean it’s no longer true.
What those points are, are called Speculations, and are not evidence. And I am being literal here, Speculations are an legal term for making judgements based off of inferring rather than direct evidence.
Yeah. If they didn’t want to follow Lothar’s orders, they could’ve just left. I don’t see how that doesn’t make Lothar the over all leader of the Alliance.