Exactly, at least someone gets it.
The amount of times teams have retained the title in the last 20 years has absolutely no bearing on whether City will do it next season. I mean, no-one would ever have said "Well, they haven't won the title in 44 years, that means they've no chance" this season, would they? Because it completely ignores the fact that their team was good enough to do it.
Likewise deciding that only the last twenty years count, and not the twenty (or 104) years before that, is equally meaningless.