Once Larian implement rolled stats (and they promised! :P ) ...
Racial Ability scores become much less relevant ... if all it takes to start your Halfling Barbarian with 18Str is few rerolls ... then just reroll few times.

I was thinking exactly this.
I have used
this program (roll 4 sixes and drop the lowest). do this six times.
On two separate occasions I have done this, and both times my first roll was RNG goodness. I won't personally feel bad rolling to match my own luck.
The racial stats just add more flavor to the build for you

.