Agreed.
And I think it will be self balancing due to the how they set up the Special Stats and Perks.
One of the biggest flaws with Fallout was that the last third of the game quickly became a cake walk.
It also dropped the replay value since once you know where to go and what to do, you can become very powerful even earlier in the game.
Bethesda is putting special stats and the skill perk system front and center and trying to seriously improve the Fallout experience.
Each Sole Survivor should feel and handle very differently based on what special stats and perks you take.
Especially when it will take over 200 levels (due to books and bobbleheads) to max everything (all Perks and all Special Stats at 10).
A 100 level Sole Survivor could spend 21 perks on Extensive training giving an average of 7 in each stat and a total of 49 Special Stat points.
Say have 3 stats at 10 and have fours and fives in the remaining 4 stats.
And still have 79 perks left over.
He would be able to access 49 of the 70 perks available.
But with most perks having 4 ranks, he could max only 18 of the perks and have 7 points of perks left over.
Bobbleheads will add about 20 perks/stats to that.
Still at level 100, he could have mastered only a third of the available perks.
So it is going to take multiple replays or a lot of play after the main quest to experience every thing in Fallout 4.