And Head to Head isnt a good metric to know wish team is better, because you have beat some team that your opponent hasnt beat, how the fact EG didnt had beat 100T, make Sentinel a worse team than KRU ?
A win is a win, beating your direct opponent is already a huge game changer, even without this rule, they are no reason to add it. Mathematically speaking, Head to Head is the worst way to sort out team in a round-robin format, the concept of round-robin is to give 1 point to any team that beat another, beating your direct opponent is the equivalent of 2 point (You win 1 point and you deny one), with head to head it's the value of 2.5 point, wish is insane (especially if the game was played on the start of the split). It sounds fair on the paper, and it's easy to believe why this is fair, but when you do the math, it doesn't. (Reverse head to head is bad, but it still may be better, but it wouldn't be accepted by people anyway) It can also lead to ironical situation where a team that start the split by loosing against a mid-team and end the split winning against the best team would be considered as worse because they get beaten by them 2 month ago.
Head to head is not only bad for competitive integrity, it's also bad for viewer experience, for 2 reason : it kill the suspensen (With other way to break tie, you have more game that have stakes), in some situation the math become too hard for most of the people
Mapdiff is the best way to sort out team (Wouldnt help in that situation), then map win percentage is the 2nd best way to sort out team (still not helping), both doesnt have the problem of roundiff you point at. Then it's pretty open, you can use round diff wish is a pretty easy metric to analysis for the viewer (Would make SEN 1st), you can use Buchholz per match win wish is calculated by doing the sum of point of every opponent you has beat and can be also visual for the viewer (This one would favor KRU), of you can even make a BO1 decider so we can have fun in high stake game without breaking the schedule (This would be the more fair and favor none)
I don't care about Sen, they are rule that can be used that would still make KRU first, and I agree roundiff has some issues, but head to head first is, indeed bad