I needed 10 seconds, somebody that doesn't know anything about how upper/lower bracket draw works would maybe need a bit more but I wrote about that here as well.
Trust me it's not as easy as you say. Even this draw information was so hard to find, as I was on different computer and trying to scroll up to find your post and in a rush just went from memory and odds. Wrong choice lol but anyway no more mistake. Now I just scrolled back and found your page, posting again and bookmarking now for everyone to see lol https://liquipedia.net/dota2/ESL_One/Berlin_Major/2023#Playoffs
(And still I dn't understand what you mean about picking 4 teams and still can get them 50/50 correct.
The page you show still doesn't explain this bracket system properly I understand it now but only because dreamleague results and I figure it from there but the page really doesn't explain it well to me? Or is it my English??
I mean all I can see there is same as every site which says "Double-elimination bracket" and this means nothing :p
Anyway, great question and indeed shame on us for not understanding it even with explanation lol
I looked at preview odds on Pointspreads.com they gave all the odds for those getting out of playoffs and no other site I found could do this. Liquidpedia posted above is better (but no odds).