Funny because I knew I shouldn't have called them outliers.

There are other factors that need to be evaluated:

1. What is the tradition/history of football in the US vs soccer?
2. What is the size of the teams and total number of annual recruits for each sport?
3. What money do HS programs put into football vs other sports?
4. Could better players be produced if there was a "club system" for football?

I don't have answers and, if I did, they might support your theory. But I also don't think it's a complete apples-to-apples comparison.

Hopefully we can all agree that HS soccer isn't a good option for player development while it seems to work, for whatever reason, in football. If we can't agree on that, then we should just stop now:)