The theory also posits that perhaps Wonderlands, without those zones, was maybe going to be sold as a $40 game with a $20 season pass.
But instead, it included those zones to be a $60 game (which I do think is worth that price!), but it still needed a season pass.
The “Chaotic Great” edition of the game which includes the season pass is an extra $30, or you can buy the four DLC packs separately for $10 each.
But this $30 season pass which $10 DLCs that have less content than Borderlands old Headhunter packs is a big miss.