Why not simply makes stat progression linear instead of logarithmic ? Simpler and actually fix the problem at the source instead of tweaking twenty different things to partially hide the effects.
Because fixing the stat formula will affect the entire game.
Yes. So Larian should fix the entire game. Doubling damage in two levels is frankly just silly.
Larian did not make a perfect game which is absolutely flawless. They are mortals and they can make mistakes and overlook things. Mistakes should be corrected.
Now I agree that they probably can't change things on existing saves, but eventually, they should rebalance the game for later users starting a new game.