The major disadvantages I can think of are as follows:

The inability to disable the tutorial notifications (minor time loss) No Quicksave & Quickload (Will have to use bumping for dialogue skip & torch glitch for sprinting) Due to lack of QS & QL, have fun with council :) No hotkeys for quick selecting items/shouts

Other than those it's still a valid category, it's just a much better idea to do time comparisons against other console runners as there is no real way to match some of the time saves possible on PC.