If they reset the stats, I sure wouldn't bother playing this game enough to ever reach the level of unlocks the game randomly granted me the other day. It was nice to see a few of the better weapon mods, but I hate that they're so locked away to begin with and the unlock system isn't very appealing or exciting in its implementation anyway.
I don't think I'd really care either way, as, even though I did get some unlocks thanks to the bug, I still haven't bothered to play in a few days, so even unlocks didn't entice me to keep playing at this time. And it's only going to get worse with all the great FPS releases coming over the next few weeks.