It was ever thus.
About 20 or so years ago, we went out of the Cup (on live telly v Sunderland, if I remember rightly*) due in no small measure to a goal-bound shot hitting a balloon and being kept out... cue hilarity in the media about poor hapless City.
Maybe a year or so later, the same thing happened to the Red Scouse and the same people backed the Anfield Road mob as they went into their usual batshit banshee mode.
Mind you, it seems to work for the tiresome cunts. The squeaky wheel gets the grease and all that.
* or maybe their would-be goal was v Sunderland... I'm sure someone will be kind enough to put me right.