Don't think that's true at all in this case - the whole point is they're focussing on 'the gear'. But it's just a stunt - it's been done many times before. "Hey take a look at this billboard! Shot on an iPhone!"
Like I said - it's just marketing.
And the photographer would've had 4 assistants, and 3 makeup and hair stylists, and another 2 people handling the lighting, and an Art Director and the Creative Director probably swung by, and a couple of retouchers working on MacBooks so that the editorial team could see live mockups, and a mobile canteen, and a couple of road crew with a large van to handle all the extra equipment. Maybe even a couple of employees from Apple Australia to make sure everything was going smoothly with their 'stealth' campaign, and because being on a photoshoot makes for a cool day away from the office.
As for the equipment - really, these days no-one really cares.