And the same objection could be applied directly to most of Bethesdas games as well. Except for Morrowind which had a pretty decent UI even if it didn't look very pretty, which really followed the function over form. UI mods are some of the most common and earliest mods released for Beth games since Oblivion. That is if you decide to play their games on the PC with a Mouse and Keyboard. Because for some reason Bethesdas developers seem to like to neglect that part a little to much. I could not imagine to play Skyrim without SKY UI for example. Or any of their games past Morrowind without UI modifications for that matter.
Fallout 3 in particular had in my opinion a convoluted and wasteful UI that required a lot of navigation, clicking and it comes with large fronts more suited to the TV screen and without any visual clues for the items. Morrowinds UI is definitely superior to it. At least as far as usability on the PC goes.
In fact Bethesda had to take so much criticism with their userinterface even from die-hard fans that I am baffled how anyone could actually describe it as good. And after 3 games it would be about time that they actually take the nudge from fans and modders serious for once.
Skyrim Mod Sanctuary - Part 7 : SkyUI (Skyrim User Interface)
Their games sure have a lot of quality in many areas, no doubts abou tit. But the UI is definitely not among them.
A small quote from the video above:
"It feels now like it should have always been there, I can't imagine playing without it (...)"
And that definitely describes my experiences with Skyrim and previous games as well.
So as far as Fallout 1/2 goes, even if the UI was not perfect, it still did a decent job for the game. I am sure certain things could have been more streamlined and improved, like the use of skills in particular. But we really should not forget that we are comparing games here with almost 20 years of difference between them. And much to my surprise Fallout 1/2 UI couldl be seen as useful even today with a few small improvements here and there simply because it was made with Mouse/Keyboard users in mind.
It's about visuals and story telling with images/graphic, it is not so much about the power of graphic like improving visuals from F3 to F4 or from Crysis 1 to Crysis 2 etc.
With new games everything is made in 3D and only very little is left to your imagination, simply because everything has to be modeled and rendered in game with high enough details so that the player can immediately recognize it. Dragons, Machinery, Enemies everything is modeled and rendered in such quality that it is sometimes borderline to being photorealistic which isn't a bad thing for it self but it can sometimes be a problem with storytelling. At least with some games. When you have an open world game like F3/F4 in particular than every location has to be modeled and made accessible with high details. That has pros and cons. Pros, well it can look awesome. Cons, you have to model everything, even the smallest information. What is completely left out here is the players imagination. Games made on the Infinity engine for example (like Baldurs Gate, Icewind Dale etc.) would be less refined, more abstract in their imagery and with their rendering. However they would still offer you artistically enough quality to give you an image of every object, like a Bed for example.
So for example when you encounter creatures and NPCs or other objects in the world the player could imagine something here. Particularly if the game gave you clues. If you encounter a bed in Fallout and you decide to use it for sleeping the game tells you "You see a bed filled with lice" and "you probably won't be sleeping alone here tonight" or something like that, your head immediately creates that image in your mind and you know what is going on. In a game that works on a level like Fallout 3 you would have to actually model a bed with small lice crawling on it to create the same idea, for this one situation. A lot of work just for small bits of story telling. In that sense old RPGs based on the PnP idea are very comparable with literature or books. A lot of it happens in the mind of the reader/player. And that works best when you have abstractions rather then perfectly rendered models with photo realistic graphics.
Before someone gets the idea though, it doesn't mean that you can't use the latest technology to make it work! Like full 3D, high quality textures, lighting etc. As seen by Pillars of Eternity, Wasteland 2, Shadowrun etc, or even the popular Diablo 3 which all look decent enough in my opinion. We are talking about a pure design decision not one of which technology can be used to melt your graphic card faster. But it certainly works better in top down views.