Yeah, I think you're spot on.
I would have said, "there's no critique of modern photo technology".
The author's endorsement at the end is saying, "I see how these funky photos are an oasis of personal photographic experimentation, in a world of mass media video exposures."
But again, the author is not criticizing modern photo technology, just pointing out that mass media is done by professionals, at a distance, with glossy, perfect images streaming into our lives.
Making your own photos by painting egg slime onto a piece of paper is more intimate.
I can say that "cooking my own meals from scratch offered me the possibility of recovering an intimacy with culinary preparation that eating out has all but overwhelmed".
And I'm not CRITIQUING eating out.