Are you suggesting neither team won league titles before Pep, and he elevated them to suddenly doing so?
City had one season underachieving in 4th, after 4 straight seasons of either winning the title or just missing out for goodness sake.
11-12 won last kick of season.
12-13 2nd, Miles behind a not very good United team.
13-14 won rather fortunately. Liverpool best team that season.
14-15 2nd. 8 points behind Jose’s Chelsea.
15-16 4th. 15 points behind Leicester. Only made CL on goal difference.
City were hardly dominant in the years preceding Pep’s arrival at City.
He spent a season reshaping the squad and won the next 2 titles with an aggregate of 197 points.
That’s great going in my book. He spent a shitload of cash but getting the right players in and getting them to play a demanding and complex style of play isn’t a given.