The core of the problem is that Wendy Pierce's letter leaves as much unsaid as said. Since the founders and recent directors of Fisher More have been Reform of the Reform types rather than true Traditionalists, it is impossible to know from what has been written whether Mrs. Pierce's complaints about Vennari and Father Gruner stem from a perspective that views them as too Traditional or not Traditional enough.
As ever, a comment from someone who actually knows a fact or two would be very helpful.