@caesar2164, was this change part of the accessibility recommendations specifically? 

I ask, because the change is less than ideal as, while the original ul isn't ideal, at least grouped these two prev and next actions into one list. This change separates the nav structure even more by having three separate lists. The ideal solution would be to move the prev and next navigation into the .sequence-list element as its first and last children (li elements). 

* If this change is necessary and you can take the extra time, I'd recommend going down the ideal road (1 navigation list noted above)
* If this change isn't necessary but this needs to be merged in, I'd say lets wait until the ideal can be done
* If this change is necessary and can't wait, let's make sure this works first and then we can merge with the caveat that I'd like to make a formal request that it is revisited shortly and corrected.