It depends what kind of player you are. I personally like to play a bit of a tricky style, using traps and such, so I check more than then average person. However, for a more aggressive player, a check might not be as useful.
His article clearly makes sense, but it's just a matter of knowing when to check. If you could easily get drawn out on, but you have a good hand, you want to control the play and checking really doesn't help you control the play.
Mostly, if you are going to check a lot, you need to be good at reading people. By letting them do the betting, you need to know when a check has really hurt you, such as if you are slowplaying and you get drawn out on. If you are not good at reading, or you have trouble getting away from a big hand, then you might be better served checking less and betting out more often.