Well for me I can deal with a point buy system if you got to with being able to get your main stat to at least 17-18. To get that you need to have a point buy of around 33-35 points

I detest lowing any stat to be under 10 points so that would be the minimum. So given the above the lowest that anyone should go in an ability is 10 so you would put a stop to players who create characters who have stats of 3.

But Larian went with what the Player's Handbook has which is a point buy of 27 so even 5E put a hard limit on getting an ability of 18.

Sure rolling would be nice but what we are getting with this game is basically what is the lowest score that you could get in BG1/BG2 (I.E. 75 total ability points).

So going with that my Wood Elf Cleric stats are:

STR: 12
DEX: 13
CON: 14
INT: 10
WIS: 15
CHA: 12

So not really a great hero but at least a bit over average.

So given the Racial Bonuses DEX should go to a 15 and WIS to 16.

Would I love to few more points sure but we have to go with what we are given.