I think it's more about not beeing able to get enough chips made, be it GPU's and now also RAM, so obviously as a company you first make what net's you the most money.
If they had access to unlimited chips I'm pretty sure we would see more...
The DLC's were a bit short compared to previous games, especially the bounty packs, it was nice to see additional Vault hunters, the open world aspect is kind of useless since you end up fast traveling anyways.
Some of those ffast travel points...
Can't choose just one
Most played : Wow
Most times played trough : Quake II
Favourite series : Borderlands
Honorable mentions : Planescape torment, Fallout series, Witcher 3, CP 2077, Duke3D, Rage, Diablo 3, Starcraft 2, Factorio, Half life...