The same goes for most points which actually matters much more.

Why does it matter more when both teams won the league

My mistake for misreading then, I do think 100 points is an insane achievement but people really underestimate how difficult it is to go unbeaten. There have been a lot of very good PL teams and only 1 has done it

90 points still wins most PL seasons, it's only recently that Liverpool and City have pushed each other to a consistent 90+. There's nothing 'only' about 90 points, and didn't go easy in any games. Honest question did you watch that season

Which is a huge asset in international football