One great thing about the Roman Catholic Church AND the SSPX schism AND even the Gruener phenomenon of ecclesiastical disobedience is that all three allow thee and me to agree once in a while.
Gruener would do well to keep his priestly vow of obedience by, well, obeying (for a life-altering change) his diocesan ordinary whom he has spurned for about 20 years while acting impermissibly as a free agent priest answering to no one but himself. Now he has to settle for such as Ferraro and Woods as his apologists.