That video has definitely improved my understanding of the American system. However, it just felt a bit biased towards abolishing the electoral college system (admittedly I know next to nothing about this topic though!). What would be the outcome for the smaller (population) states if all votes were equal? I think the video sort of glossed over that, but as I said I haven't got a clue when it comes to American voting systems!
I'm also no expert on the system, but as mentioned it is a terrible system so it's not surprising he wants to abolish it. Although it is possible to keep the electoral collage but reform it to make it a bit less unfair. Appointing the electors by some kind of proportional representation instead of winner takes it all would improve the situation a lot, and still let the small states be heard.