You see that way of thinking all the time. WIllian scores a FK and penalty against Spurs, all of a sudden he's top class and completely papers over the cracks of how limited he is.
Alonso scores a few FK's and it apparently papers over how utterly average he is defensively.
FA Cup semi final against Spurs. Those that actually watched the game, would understand how much of a passenger Matic was. He then scores a cracker, and some people were giving him MOTM.
People tend to look at the highlight reel rather the full match and actually analysing their ability as a footballer. (nearly laughed my ass off at his performance against Burnley, as he yet again refuses to use his right foot to play a pass and ignores the situation entirely).
Cahill, Zappacosta, Alonso, Moses, Drinkwater, Willian, Batshuayi are just not good enough, especially to be regulars in the starting XI.