The problem with most computer sims like is that they are only as accurate as the player ratings that are inputted into them. And all too often that basically means they end up replaying LAST season rather than the next one. In this case it seems pretty obvious that the computer is just parroting the production of our players from what they did last year and projecting it out over the season. Hence John averaged 12 last year, so therefore he will do it again next year. Spencer does not improve, Kevin gets no more shots etc. It also does not appear to be making any allowances for injuries, as an eyeball check seems to make the total of all our players averages very close to being equal to out team total points per game, which is not how it works. Because of injuries, your players' averages always add up to something more than your team average (if you lose your 20ppg scorer for 20 games, then those 20ppg get spread out amongst the rest of the team until he gets back, inflating their numbers above where they would be if you were totally healthy). And because injuries do not seem to be accounted for, a number of guy's numbers are artifically deflated.
Actual preseason stats BTW were:
Points For: 96.3
Points Opp: 105.8