My main goal with the proposal was to make the format work for arbitrary team counts — for example in cases of last-minute withdrawals or changes in participant numbers. And it does achieve that quite well.
Doesnt classic swiss can do that ?
Anyway in Val case, so many tournament are in 12 team that I litterally made an entire video series about 12-team format and the way it backfire XD
little negative impact and the core advantages of the format are still preserved
Giving a bye to a 0-1 team has a negative impact on competitive integrity, https://www.youtube.com/watch?v=Adv7_Vb_29U thats why where you put the bye is important if you are "scripting" your swiss.
Also, I do like the 1-4-8 / 4-8-12 structure you made, this is really good for a large number of game... But not really 12 XD