Some people rely on the 'free' resources more than others. The real question is where is the cutoff percentage at. Say someone got 95% of what they know only from free resources and passed boards swimmingly. That sure don't look good on the med-school.

Say 95% of the entire class got 95% of the learning through Youtube/Anki and 95% of them passed boards. At such a percentage, med-school is all but useless to the general public that they serve. May as well get rid of them.

Granted, I don't think it's anywhere near that kind of level of dereliction that the med-schools are at (Cadaver Lab is an obvious counterpoint). But, where is the cut-off point for the schools and society? It's not 5% of the material being learned outside of them, that's fine I think. But if 95% is 'learned' outside the lectures, then yeah, that's a real bad sign.

It's a complicated question and the answer will likely be more complex and will evolve from class to class and year to year.