Fallout 3 is a fun game. If it only has a nodding aquaintance with the original games, who cares. I hate turn based combat, so FO 1 & 2 and KOTOR were never more than average games to me. Games like Blade Runner had similar depth of plot and so they still get played by me.
This rubs at the root... If a person dislikes crime drama, does it make sense to buy a Law & Order CI video game? Does it make sense to change the game's content to suit audiences that don't like the genre? ~This is what they've done. Its a fine game but its a kiwi in the potato cellar ~Its out of place and should never have been placed there.
As for Fallout 3, its a fact of life that Morrowind was never finished by 85% of the people that bought it. Beth decided that it was not giving the customers what they wanted so they dumbed down the main quest in Oblivion to allow more people complete it. FO 3 works on the same principle, an easy main quest that an idiot can finish, with extensive side quests to maintain replay value. Its a Beth game made the way that Beth now make games, wishing it was something else is pointless.
Where I live the decided that not enough people were passing the drivers test, so they dumbed it down. Personally I see good promise in the CS
and am indeed thankful for it.