Don't try and prove this wrong: Every freaking second person fancies they're quite the Jimmy Olsen. What Simon's doing cool is putting together peanut butter and chocolate and getting a peanut butter cup. That is, the effect is so much richer than sum of it's parts.
Because he knows that when a clicker sounds off, it's time for the archer to let the string go, he's got a good cue for pressing his shutter.
Because he knows that the motion of the arrow as it leaves the bow is wildness, he realizes the challenge in capturing it.
We've all tried to get an action photo and been stymied by hitting the button at the wrong moment.
Now get this: Archers, we just keep doing the same thing over and over. Simon would watch an archer and count how long it took from draw till release. And count again. And count again. Then he'd get the rhythm. The pattern of when she'd breathe in. Purse her lips. Narrow her eyes. She's not even conscious of it. But the photog is watching... (Whoo! Need a cold shower?)
In conclusion, I propose that a photographer can totally take nice pictures of an archer but an archer/photographer is doing something beyond. I learned that the word for the peanut butter cup being better than peanut butter + chocolate is 'synergy', which I have always used to mean A) the computer/hologram from Jem and B) tie-in merchandising. I like Jem. The end.