No they aren't: as the article says, they are probably too high. The article is trying to rank how good the teams are and not how special the title win was. Leicester's win was amazing, the achievement huge, but that is because the team wasn't that good.
The City team that won 100 points was the best ever City side and the best team to win the Premier League. Whilst the achievement of retaining the title and winning it how we did was very special in the following season, allied to the domestic treble, looking just at the league, the Centurions were the better team, just.
Anyway, at least they chose two City teams in the top 3 and no Rag teams.