In the other games, you could not make your way through the whole game as a scientist with CHA at 10, no one dare tell me otherwise. It is necessary to go through a conflict because combat is necessary in the first two, and the main point in tactics. FO3 doesn't utilize the SPECIAL system as much as the originals but even those weren't close to perfect.
But that's just a pessimistic point of view, the SPECIAL system seems to pull it's job off and I never really complained, no one's perfect.
I'm sorry, but I have to disagree.
My very first playthrough of FO1 was a scientist. I tagged Science, Repair, and Speech, and pumped up Charisma and Intelligence. Mostly due to ignorance on my part but also because I was more inclined towards roleplaying. And I wanted to roleplay a charismatic scientist.
I found it very rewarding, because my character started out as a non-combative loser but his strengths in other areas made up for that. Because of the high charisma, people showered me with the best stuff, and because of the high intelligence, I was able to max out my tag skills early and was still able to build up Small Guns and Energy Weapons to a decent degree. True, I had to rely mostly on my companions during the early stages of the game, but near the end game, my nerdy character had become a full-fledged warrior of the wastes.
I agree the old SPECIAL wasn't perfect. Some perks were useless, others were bugged. But the stats meant more, and influenced more factors than, let's say, the red blips on your radar. As such, every subsequent playthrough I had was an entirely different experience. Which unfortunately, I can't say the same for FO3.
Still, I agree with what the posters above said. This is Beth's first run with SPECIAL. And the character development system was lacking but decent. I'm looking forward to any improvements they can make in future games.