Rolling stats can be fun but it gets tedious.
Please, Please, PLEASE give me that tedium! In games of old that have allowed rolling for stats I have been known to spend countless hours rolling and rerolling just to get exactly the stats that I wanted... and I loved every second of it. Granted, all of those games allowed me to save the character when I was done, so I only had to undergo the process once for multiple playthroughs, but... the point is that I WANT this feature, and if it breaks the game's "balance" then so be it. I'll just make a mental adjustment (or download a difficulty increasing mod) and go forth with glee.
