They might be aspirationally.

The implication is 'if it's good enough for a photographer/videographer, it will be excellent for me if I want to take photos and videos of my hobby/kids/travels'.

But professional photographers aren't giving up their DSLR's for an iPhone anytime soon.

Oh but they are. They just aren't doing it for money. My mother buys new iPhones almost exclusively for the camera.

Lots of people take photos and videos with their iPhone.