Lads is correct, and it is not just seminarians but the laity. Anyone who dares question the SSPX priests or God Forbid the leadership is automatically branded as a troublemaker.
I say amen to that from personal experience. My wife and I were sspx laity, who were shown the door. SSPX, alas, is very cult-like. Even a senior bishop better not get out of line. +W obviously did and paid for it. He offended the "Red Sea pedestrians," who, I believe, have a vested interest in the organization, and have had one for decades.