I agree he's probably an alpha. He doesn't seem Ji-lead imo. He strikes me as FeSi (Ne-heavy - alt. NeTi). There's something face-centric about him but I had time to watch the video only until the second minute, unfortunately. He speaks very quickly but I don't think that's avalanching speach. I've seen a bunch of FeSis of who have a very frenetic way of speaking, especially when they're quick-minded FeSis, with a restless bubbly mind.