I rely upon the ability to select multiple images and apply corrections all at once. I mostly do this with exposure-bracketed images and images that will be stitched together (and so have consistent exposure and focus). It’s important to pay attention to the image browser. If selecting all images by accident is the problem, then may I point out a different solution (already in the backlog) that leaves current functionality intact?
I would accept a one-time warning, though, with an option to “not show this again.” 