I mean why did automated group selection get done in the first place? And if it was done, why would you use LotS points for it? I mean I don't want to get into naming names but I DO NOT think that LotS points are an accurate placement of dudes based on their competency, especially with how inherently random the participation of people are across the year. Blackheart puts 1 week of prep and gets 2nd in two different LotS tournaments. Blackheart will put 1 week of prep into this LotS. Does that mean his seed is justified? Does anyone think that? Is he just barely above Tex in skill because Tex became extremely active across the tournament scene since the mid year and got his points there? Bad group seeding will be felt through the rest of the tournament and create generally bad situations. LotS points have a large margin of error in weighing activity vs skill because it doesn't really matter so long as you get some satisfactory 12 invites. Now you have made it that you ABSOLUTELY have nearly no margin of error and need them to showcase skill.
I wouldn't go with round robin because it just literally has no benefits here over standard GSL double elim format. Nobody cares if you're 3rd or 4th best in group stages. It also introduces the need for tiebreaker parameters unless you're totally fine with extending the tourney even MORE for tiebreak games since round robin is also going to add several games on top of double elim.
Like to reiterate that one of the biggest lessons of last year was that round robin should absolutely not be used.
Also just realized Yudi won the qualifier only to get put into the biggest group of death I've ever seen. Well 2nd biggest, group C is the biggest. If you released group formation before the qualifier, I genuinely think people would have intentionally forfeited, and releasing it post-hoc isn't a solution to that problem but rather recognizing things will be gimped so you might as well as not let players know it's gimped until it is.