Really nice video, I would add that communicating to your teammates efficiently in the buildup before a push, as well as what you are focusing during a push is key. It was implied, but not explicitly said that "these are calls that must be made and usually by this person."
I think sprinkling in a bit of "how to call" in these videos may be beneficial for lower level players who don't really understand comms properly. Maybe an idea for a future vid, idk. Things like, "the scout playing the point can call if they are doing it, or if they need more uber to run across to shoot the enemy team".
Also maybe (if it isn't too much work) using some clips from different games to emphasise every point more rather than just some. Like when saying that sniper can snipe people and you can drop players if you are greedy, try to find a clip from that happening. Or when you say that teams take too long to push and the enemy gets uber or kritz and punishes the push. Ofc a lot more work so don't feel forced because the ideas discussed in the video are actually really good, it would just push the video to being even better, even if the spoken content is the same.