Multiple clicks to get to the full resolution image. 50 thumbnails able to be viewed at a time, many uninteresting to lay people (solid gray screen, dozens of repeated images of of a portion of the rover itself, etc), for the monumental task of sifting through the 6407 images the rover has transmitted so far in mere days. Wholly unusable in a few months I imagine.
And to a science agency, I don't think their top priority is selecting the best 4k wallpaper for easy download.
I honestly don't mind government sites, they are usually thoroughly boring and very conservative with their design, which means that even old people like my dad can click around and use it. I think that's a good thing.
