...And unfortunately it's not due to incompetence. It's more likely due to market perception; tailoring the product to ideally suit their perceived customer. (Not an exact science, as seen with 76.)
I once read an opinion of Superman, that observed that Superman's 'Clark Kent' identity was his low opinion of [weak & frail] Humanity; a downgrade to blend in. Well, I think that Bethesda's FO themed products are quite telling of their level of esteem (or lack therof) for the majority of the game-buying audience.
(Low patience empowerment junkies, that hate to think—that being seen as a chore that they play games to escape.)
The sad part is that they have been proved right more often than not. They made a ton of money on their games; people paid them for that crap, and enjoyed it. People did, and still do dish trash on the original [Fallout] games as outdated, limiting, and —fine for old people. Just like a kid disparaging sprouts in favor of candy corn.
I twice spent a year on a dungeon-crawler mod that was very puzzle-centric, and not overly hack-slash. Yesterday I read a post by a player condemning them as no fun because it was not open hack & slash.
Bethesda avoids anything but an ostensible challenge that can be perceived as an accomplishment by the player; never something that might actually give them pause. The closest thing I ever saw to that in one of their [recent] games was the optional musical escape puzzle in Tranquility Lane. How many players even know about it?