I've seen this posted many times, but I'm hoping to see a serious consideration from Adobe reps.

Programs that currently have middle mouse hand tool functionality:

Adobe Audition
Adobe Illustrator
Adobe After Effects
Even Adobe Media Encoder

As a professional motion designer, I switch back and forth between all of these constantly. In the interest of UX consistency across software, I'd think it'd be a huge quality-of-life improvement to add a small detail like this.