Challenge is not an important element for an RPG. Some people fail to keep that fact in mind. Challenge is merely one of many elements of excellent game design and it is not important for various games, or even included, because it just does not fit what the game is intended for.
Role playing games are about "playing a role". If you think that Fallout 4 is easy, especially on Survival level, you are not playing a character concept but merely using whatever the game offers in order to defeat everything and anything you might meet.
This is not a "bad design" as some people claim. On the contrary, it is excellent design. The problem is with the player, not the designer(s). Such players are playing the wrong type of game, that's all. The game, as an RPG, is balanced to allow playing a wide variety of character concepts. Some players simply do whatever the game allows in order to maximize their killing potential regardless of any character concept they may have at the character creation screen. It's like blaming a racing game for not having puzzles. They are playing the wrong type of game for the actions they are taking because a (good) RPG has to allow a wide variety of characters to be viable, thus including a wide variety of content that a player could choose to use that would make the game "easy" (but it isn't "easy" for any specific character concept, only if you go about playing the game to "beat it" rather than "experience it through your character").
For people who want a challenge to play on consoles is self-defeating because any game will have to be customized to their own level of "challenge". Difficulty levels will not do that. Even if they offer a slight difference initially, such players will always dominate a game once they learn its mechanics. That's true for any game, not just RPGs.
The one option such players have if they choose to play on consoles, thus removing the ability to alter the game to their personal wishes, is to make choices within the game world that creates a challenge via their own conception of "role playing". For example, as was mentioned, play with the choice that the only healing available is via natural means such as food, water, and sleep. Play with ammo count limits would be another example of such a choice.
It is not up to the developer to cater to an individual's preference. In the case of BGS, they do this anyway via support of mods, stronger support than perhaps any other developer. They do this specifically so that players can customize their games to the individual player's preference because each player has different preferences and these preferences are often in conflict with each other.
You have options to meet your preferences. Use them, do not complain for the developer to use them.