Ok. Here's the bottom line even though it will be a very unpopular opinion.
When rolling characters straight up like this, everyone will have a difficult time optimizing and power gaming. Even with a lucky set of rolls.
This is very obvious if you look through the posts and consider the tone and attitude used. Most people are complaining because they think that any character with beginning stats lower than 14 are "Nerfed".
An array of 16, 15, 14, 13, 12, 11 is a fine character. Especially once you add normal race bonuses. But why can't the array be 14, 13, 12, 11, 10, 9 and modified by race bonuses?
I'll tell you why. Because hack and slash type of power gamers think this character is a turd that couldn't slaughter a level 1 kobold in one attack.
Personally, I like the idea of rolling characters straight up because it forces the player to figure out inventive ways to make the character work while actually ROLEPLAYING. Sure, I wouldn't want to make every character that way but it throws some of that old school play into the mix if you do it once in a while.
I apologize for the ranting and raving along with my long winded ways.