I guess the conclusive point to my ramblings is that all things considered I'd expect to see bigger margins from Pep to share the perspective that you have of him.
They've won the league with 90 odd points numerous times and 100 points once. You can't expect an even bigger gap when they're dropping that few points & Liverpool are very obviously also one of the best teams in the world.
Pep will have won 4 league titles, 4 Carabao cups & 1 FA cup since arriving. That's only two seasons without a league. Insane.