It is presumption, but what if the children are already so corrupt that it seems "practical" to install such a filthy accommodation? Remember Post Falls? And to be honest, I think a number of children churned out by SSPX schools aren't too different from those that go elsewhere... that is my limited, negative opinion. I realize, though, that there are still plenty of good children out there and they need real action to protect them.
The SSPX died a long time ago, it is only apparent in recent years. People need to take matters into their own hands to pressure a reformed direction or get off the Titanic.