This cuts both ways. Our laws not evolving with technology is also the reason why tapping and intercepting secured digital communication is orders of magnitude more difficult than tapping someone's analog phone line, or why decrypting a hard drive is far more difficult for the police than sawing apart a safe.
Agreed. Technology has allowed abusive images to thrive and reach new consumers. Any pressure to "evolve laws with technology" will surely lead to more draconian anti-privacy measures.