I've tested this with both Bartik and Seven set as admin theme in latest firefox, but I believe this is independent from theme and browser used. Add to this:
a) the fact that the pager is not duplicated at the top of the page
b) that there is no way to configure the amount of entries listed in that page
...and you get a lot of vertical scrolling to navigate to the next page. Plus it also looks really ugly IMO.
Is this a mobile-first/thumb-friendly intentional thing?