Let's look at that original picture one more time.
Aha! Exactly as I thought! They don't show the bag tossed over a shoppers arm, hard at work bringing home her food for her family. No, the bag is resting on a bench . . . clearly hiding the stretch that would make this design unworkable.
But, no, I'm not bitter.
The great thing about crochet is that you can unravel it in a mere fraction of the time it takes to put it together and immediately set about to planning something different to make of this soft . . . organic . . . celery green . . . cotton.
Green spaghetti, anyone???