It is crazy to think that Google is being restrictive with cryptocurrency ads on the search and display networks but these ridiculous bitcoin videos are allowed. I guess the question would be whether they will let you advertise the videos on YouTube.
It is certainly understandable that they are cracking down on ICO advertising. The thing about youtube videos is that people can submit them without review ( unlike buying advertising ) so unless they built an algorithm it will be hard to detect shit cryptocurrency products.