Not true. The article says that if you were the aggressor before flop, you should be aggressor after as well. You'll be surprised how many players will fold to a c/bet on the flop if you don't hit, especially on lower limits. If you were to check every flop you miss, you'll be giving your opponent the oppurtunity to take the aggressive position in the hand, and come at you, often with nothing.
If you DO get called on your c/bet, then blank the turn, then you have to decide if your hand is worthy of muck only.
Passero's comment about raising if you're faced with a c/bet is good, but I don't recommend doing it if you have air. You should have a hand that stands a chance of improving like strong or monster draws. Otherwise, just muck the hand.