I just don't understand.

[FC Barcelona]

You are lucky and even like that, even if you already won league, they should give you an right answer of how that could happen.

IMO, all illegal formations should be forced by script to lose.

I hope to have a real answer, and maybe a fix on this on the future patch/update/change of the game

Maybe they should script a 3-0 victory for the opponent, like in FIFA when you cancel the match