United won 8 in 11 missed out for 2 years then won 5 in 7 so the Premier league has pretty much always been a procession.
Then suddenly there was new competition and the clubs who were raking in the euro money hate the upstarts who didn't need it and tried/are trying to close that drawbridge.
Man city (and maybe Newcastle eventually) can't win it often enough for me if they are stopping united Liverpool and arsenal