I'm not decided yet, but there were quite a few moments in the video where he had that typical SLI/ILI look of annoyance of having to listen to dumb questions. He gets angry for people not understanding, and quite impatient, not very willing to listen. The whole posture to me is unlike that of LSIs, who can get quite annoyed too, but they get like that when people 'violate the rules'.
Here, going into passive/aggressive mode:
ETA: after some more watching, I'm convinced there is a lot of Fi in his body language, but it is not Fi-ego.