2) Regarding the ex adiunctis argument:
Someone here (Ladislaus?) made the argument that Michael Davies'/+Williamson's ex adiunctis argument would rob the rite of any "essential form," thereby making it unessential.
I'm not sure about the context, but the only thing I said about the
adjuncta is that the
adjuncta by themselves could invalidate even if the essential form were intact. I don't believe that "good"
adjuncta can supply for a lack of valid essential form. It was Pope Leo XIII who stated that even after the Anglicans had scrambled to "fix" their defective form, the
adjuncta were still so defective that the rite remained invalid.