Unless I'm missing something, the "WHAT THE HECK IS A LEVEL 10 MEETING?" post doesn't actually answer "what the heck is a level 10 meeting?".
I'm not going to trudge through clear marketing/sales copy to get down to a few common-sense nuggets of information. Stuff like this is clearly a sales pitch for books/courses/etc vs. any sort of real-world education around management and entrepreneurship.
Typically when it gets implemented in an org it's just a cargo cult "Simon Says" game that'll get ya fired if you don't drink the koolaid.
With Level 10, you basically elevate your team and meld them into Chuck Norris.