Clarkson, the priests holding up the fight of the Archbishop have NEVER (sigh...beating a dead horse) denied the authority of Rome or Francis. Look at the YouTube video posted above or the one of Fr Pfeiffer in Charlotte NC in Jan 2014. If Francis, or any other Bishop invited them to come and speak about the crisis, they would go w/o delay. What they wouldn't do however, is compromise Catholic doctrine in the process.
The "Mass Bastard" can never be on the same level as the True Mass. Let us pray for +Fellay that he once again shouts this from the roof tops as the Archbishop once did.