Ask yourself, what would Jim do? If an editor asked him to shoot an important assignment with his iPhone do you think he’d do it? Do you think he’d risk his credibility like that?
You can put it in historical, pre-digital terms if you like. If Life Magazine asked Henri Cartier-Bresson to shoot a hurricane with a Brownie, what do you think he’d tell them? Yeah you’re right, and it doesn’t sound any better in French either.
Photographers, if you don’t give people something great, you’ll die too.