More than that, this video series has noticeably less "Look at MMMMMEEEEEEEEEEEEE!!!!" to it. Which is refreshing. Less filler, just the good stuff, like a professional production about the subject rather than the maker.
If I click a link to a video that has the person suggesting to subscribe, follow, smash, etc, I just stop watching. If you feel the need to prompt for followers, you're content is more than likely not good enough for me to want to follow it naturally.