This is not the conventional wisdom at all. The traditional rock-paper-scissors rule is that aggro beats control, control beats combo, and combo beats aggro. This is because control can easily disrupt combo enough to make it fall apart, while aggro cannot. Meanwhile, countering or killing a few or even most creatures does not help when just one 4/4 of the 8 in their deck has to stick and then you are dead in 5 shots (often 4, since control likes to spend life points on things). Meanwhile, creatures kill too slowly to beat a combo deck (if a combo does not out-goldfish the fastest aggro deck, then the combo is not viable in that meta).
Certainly there are control decks that beat some aggro decks, in a metagame-specific way. For example, Glare beat Zoo in Ravnica/Kamigawa Standard. But Glare isn't really a "control" deck; it's a hybrid deck that is really "slightly slower aggro with special cards to beat faster aggro."
Just Google "aggro beats control," and you will find a lot of articles like
this one about the standard rule. Google "control beats aggro" and you will find forum posts about specific metagames, like people complaining that "thanks to Jace, the new rock-paper-scissors is control beats aggro, control beats combo, and control beats control."