The whole issue is in declaring 15 not good enough.
It is. If one feels it isn't there is no argument, that's a minmax point of view.
First, to be clear, when I described 4 Orc characters with 14 or 16 Strength or Intelligence, I only used the values 14 and 16 because 15 is essentially the same as 14 (unless you have two odd numbers you want to increase by 1 at level 4, yes, just assume everybody dies from falling rocks when they reach level 4).
Second, whether 15 is good enough is not the whole issue. Personally I generally wouldn't choose to play a character with less than 16, especially in BG3 (I would not call this min-maxing, but only power-gaming, as min-maxing involves taking this to the extreme). But if everybody on the table wants to try a suboptimal character, why not. However, part of the issue is also whether a roleplayer should be allowed to play with, say, Dench the 16 Intelligence Wizard. Which of the four above characters would you consider allow for roleplaying to take place ?
