Quote from vilas (my underscoring emphasis):
"With AP is off and side stick neutral if the aircraft is pitched up beyond Valpha prot due to disturbance it will try to pitch down to Valpha prot and not pitch up to alpha Max. If the pitch up is rapid then Phase advance will bring this threshold to a lesser value."
In an otherwise accurate and succinct analysis, I think you may still be confusing the phase-advanced threshold of an AoA-mode engagement with the target AoA once AoA mode is engaged. For the reasons I stated in my earlier reply to you, with neutral sidestick that target can only be Alpha-Prot itself; not the AoA value at its phase-advanced engagement, which has no further relevance.