Basically, the idea behind the video is that, currently, you should have a completly free education system, because student debt makes those individuals not contribute to anything regarding the economy (buy goods and services) in the first few years when they finish uni and start working - they have student debt to pay off. This, coupled with the fact that jobs that don’t require an uni education are in high demand now, but are well paid, is what the video is all about.

There is no suggestion at the end, just conlcusions, but, IMO, this just goes well with the basic concepts of a free education in socialism/communism. If the education was free and you get paid more or less the same as someone with a lesser degree than yours, the choice basically comes down to whether you’re fine with getting paid almost the same as a, let’s say, gardner, but you get to spend your work day in the office instead of outside trimming the lawn, sweating, etc. This was the exact choice that people had to make in socialist societies (can confirm from experience), and I have to say that things balanced out nicely, at least in Yugoslavia.

That video was peer reviewed.
In summary, many details were missed from how the Dutch system actually works and Economics Explained uses that surface level understanding to make an overly confident and wrong conclusion.