I wouldn't mind some raw files but I honestly don't think they'll be too strikingly different than these (make sure you're looking at the full 20 MP images which should be several MB, not the 2 MP previews at ~200 KB).
The raw files have a ton more dynamic range, however. You could pull out a lot more detail in shadows.
I don't know what the Lightroom* skillz of the astronauts are, but I would not be surprised if they were shooting RAW+JPEG and only processed the JPGs in Lightroom. They probably had presets to export to smaller images that was created months ago and loaded onto their PCDs. I'd imagine 4 humans in a tincan have more things to do than to be developing RAW images by digging out the details in the shadows, push the exposure and pull back the highlights, and then apply all of those settings to each sequence of images. They'll let the folks on the ground do that.
* The exif data has Adobe Lightroom Classic (Windows) metadata in it.