It certainly skews balance.
Does it tho?
I mean, its popular excuse ...
But do you realize we are talking here about game, where you can get permanent +1 to anything from Hag, and permanent +1 to Charisma from Volo ...
And there is several, yes SEVERAL confirmed items that gives you +2 to Str, Dex, or other Ability Scores up to 20?
Even puting aside the fact that people who are re-rolling for crazy high numbers usualy dont give a damn about balance.

I just fail to see the point where the game "becomes" unbalanced.
- I start with 17 charisma as a Dwarf and its perfectly fine ...
- I get to 19 charisma before i meet first ASI and its perfectly fine ...
- But i start with 18 and its sudently unbalanced? O_o
How does that even make sense?
