You might want to reread what I wrote. You seemed to have missed a few key problems, and only offered a few things that your school currently does... You have to remember that even if your school currently has one policy there is no guarantee that every other school follows that policy or that even your school will continue to follow the policy. What you have to realize is that a school is a government institution and as such is at the mercy of political change that could easily see those test score follow that child forever.
I only mentioned a few things my DD's school district does because it would be extraordinarily silly of me to generalize all schools based on limited experience. Since you have repeated my point, mission accomplished. You may have raised some valid concerns, and now that we've established that those concerns certainly don't happen in all instances, all that's left for the OP is to possibly check with her school to see if they're worth consideration.
Otherwise, all I'm seeing in your post is negative rhetoric about public institutions, and that's not a conversation I'm interested in having.
