Ngl, feel like his tier list is based on usability while avoiding big tech.
Tbh even if this tierlist is not the best or great, it still is "good enough". Plus the most important thing is to get tons of people interested.
I rather have "good enough" tier list that reaches to millions of people, then have a perfect tierlist that only reaches out to less than a dozen people.
Because amongst the millions of people who are interested, thousands of them will do their own research into privacy and dig deeper into it.
Plus right now, the biggest weakness of privacy is the fact that our community is too small to make an impact.
Having someone give this much outreach and influence to attract attention towards privacy is a good thing. (well, as long as their advice are on the positive end of the spectrum, and pewdiepie's advise surely is, even if its not perfect)