The difference is pre Low In High School covers were designed by a professional designer or design dept. These are not. Some people do not care, but having grown up with The Smiths and Morrissey (solo) and having loved the cover art nearly as much as the music, I do. It doesn't help that I'm also a Graphic Designer, so can spot a non-trained person (can't really call him / her a designer) from a mile off. Poor text placement, lazy stock photos, a pre-occupation for centering text and then shoving it over faces, poor Photoshopping (see the T-Shirt on the new album cover) the list goes on...
I actually think the It's Over cover is a piss take. I can't believe he's going to put this cover out. Great single though (so it's not all bad).