I think he overlooks a few of the complexities, but agree with him on the three points as to why reunion was not going to happen. It seems Pope Benedict counted on an outpouring of grace through the lifting of the excommunications and the promulgation of Summorum Pontificum. As Universal Shepherd he did his job.
Mary Victrix
Mary Victrix 
Amen. I love the term “Universal Shepherd” — haven’t heard that in too long a time. If Fellay, Williamson, deNantes (et al) shoved aside their own agendas for a whole church season, I think they’d see and hear what Jesus really wants, for they have some of His own character as clergy, right? We must go on praying for them.
A definite statement of mercy. 😉