Comment by true_religion

Thumbnails in your file picker are table stakes at this point.

Everyone has a cell phone capable of holding thousands of images, most of which won't get an appropriate title.

For example, I'm tiling a bathroom now. It was very easy to just take dozens pictures of tiles send them off for approval, and get the top five back for a further price check. That entire workflow was enabled by thumbnails. If we had to check the filename of each image we were sending, it would have slowed things down immensely.