I think you misinterpreted my question. The question was framed in such a way as to point out the difference between the SSPV and SSPX, they are two distinct groups with distinct Theological/Ecclesiological beliefs.
An "ad hominem" attack would have been pointing out the major league controversy surrounding "Thuc line" Bishops....that however is for another post.
I interpreted your comments as dismissing Dolan for being a sedevacantist rather than addressing his argments against the '62 Missal.