I swear only thing that is keeping me playing this game is because my brain is already busted from playing Diablo likes since Diablo 1.. there is nothing of real worth in this game, this is a game for aRPG fans and MMRPG fans. Quests are basically MMORPG level and the rest is murdering tons of same enemies and collecting loot with modifiers and leveling up your skills..
I'm sorry but are you hating on the game for codex cool points? You just said you're the target audience for the game
I do agree tho, the looter shooter mechanics tap into that random loot dopamine trigger from ARPGs and MMOs, but while there is a lot of weapon variety, it is urgently lacking in interesting set pieces. In regards to MMO-type quests, I think a lot of them are designed early on to get you to explore and send you to various places, ie fetch quests. Some are quite good and overall the writing is above their previous games, but it suffers a bit early on due to their intent of getting you around places.