The thing is that we don't know beyond a doubt who did or didn't use other than a few guys right now. It would be well, stupid, to make any changes to the stats without definitive proof on which players used and didn't use. As far as I know they still don't have a test in place for HGH either so there is still a good chance there are cheaters that would never be caught. If you aren't going to catch them all, I think the best thing is to just admit that steroids were used and move forward to prevent steroids and other performance enhancing drugs from being used in the future.