I think he's arguing that Domenico and Giuseppe Violi lost their backing from individuals in Buffalo because the Violis attended the Bonanno induction ceremony.
Not sure what that has to do with the murder of Angelo Musitano. Who is saying the Violis lost the backing of Buffalo? If anything, the Luppino-Violis as possible remaining Buffalo family members are enacting revenge for the murder of Papalia. That would make a lot more sense to me. Crazy to think the Musitanos are now allied with Buffalo members against the Violis.
I think Giacomo Vicari indicated Buffalo ordered the Pops hit in 97... thought it was strange... but who knows nowadays. Maybe he was right.