Your youtube videos with Luca are very interesting! I think I listened to all or most of them and offered to give a summary for people who might be interested since they aren't subtitled or at least they weren't when I viewed them.
I haven't been following Loki and I only watch Claude's videos occasionally, but in my opinion, Claude's polyglot project was probably more valuable to the internet language community than "Babel No More" because Claude shared the information freely and there was a lot of it. I wondered if Amir took the female polyglot video from last year (?) a little out of context. I felt Claude was trying to encourage female polyglots, not date them, but I don't follow Claude's videos regularly, so I don't know if Amir's impersonation of Claude is based on other videos.
It's not just a matter of taste, or "À chacun son goût" here.
Multilingual people are now and are probably going to be increasingly necessary in the future according to those who notice trends in employment. Maybe these polyglots won't bring in big salaries, but those who speak at least two, or better yet, three languages WELL (and write them) will be able to make a living.
It takes a lot of time to watch videos and I think it's best to find the ones that share the most valuable information in the shortest period of time. It's simply more efficient.
It does take time for languages to "take" or to "bake" in our minds, but it's also possible to study languages more efficiently while they are gelling or baking.
Instead of polyglot videos, I may switch to videos for interpreters and videos by native speakers.
My goal isn't simply to be a member of a language learning community, but to use my languages in a practical way as soon as I can. Watching multiple inspirational videos isn't going to cut it for me in the future, real tips, not theories or guessing about languages, will.