I don't understand the logic. If the champion won on <80 points, doesn't it means that there is competitions? I.e. Teams taking points of another? Instead of the opposite ?
Nope, it usually means there's no standout team these days. In 2011 the second placed team finished on 71 points and you could see that none of the top 4 aside from United had the quality to go all the way. We won only 2 or 3 away games that season and still walked the league.
This season there'll likely be 3 teams on more than 80 points. It's underatandably tougher to win the league when there are 2 teams other than you going stromg.