Auto-focus can easily just detect people and make anything at other distances blurry. That can be hard to catch while taking the photos if you're not used to it.
She has no room to complain, though. It's not like she's treating his wishes and boundaries with more respect than this.
Forcing people to review food is bad manners. Especially if it's with others and the person who made it.
They're all giving him a hard time while at the same time showing less respect than they're demanding from him. Typical hypocrites.