It's good that someone is finally bringing it up, but the article is internally inconsistent as if they can see it but don't want to believe it.
The headline says it "helps prove" the bias point and the article says it is "peculiar" this only happens to one club, but they themselves don't "give much credence" to the bias argument.
So which is it? A cabal of journalists who dress up City's and only City's transfers in as expensive a light as possible to show them negatively? Or ... well, what exactly? How do they explain it otherwise if they don't think it is bias?
Maybe I am being too hard on them and should be grateful they are at least recognising the bias, no, sorry, the effect of "preference, or the club involved". Not bias, though. Hell, no.