It seems to be good for the top 20-30 in each division. If your complaining about 50-100, does it really matter?
The website is intended to provide a general indication of the relative strength of teams to help them identify good scrimmage partners or pick the right tournaments. If you're using it to prove that the #20 team is better than the #40 team, you've got it all wrong. Those two teams are probably in the same neighborhood. But if one of those teams knows the tournament in Rochester, NY is filled with teams in the 200 range, well the site just saved you some time and money, right?