The advent of the photographic dry plate method simplified the requirements for photography, right?

That’s right.

Previous photography was a wet plate method, which required wet pigments to display and store impact information, which was the kind of large-mask flash photography seen in old movies.

Later, the dry plate method appeared, which facilitated production and did not require waiting for wet pigments to dry. It greatly simplified the materials required, improved efficiency, and lowered the threshold.