Agreed!! I said all this a few times.
Speaking of "plot holes" that aren't... I know everyone is up in arms over the scene between Manannan and Alexander but.... isn't that Alexander's dream? So, while I think it's plausible given the fact that Alexander lived in this timeline, that Manannan never intended to kill him but Alexander didn't know that (or perhaps intended to drain his power and then kill him), nothing in that scene is really Manannan admitting to anything. Nor is it Manannan returned to human form. It's just a dream that we happen to be witnessing.