In Normal Law, Alpha ('Stall') protection "overrides" High Speed protection.
In Alternate Law, if High Speed protection is available (it is not always), it is "reduced", which means (IIRC) you can "overpower" it with e.g. full fwd stick.
Thus within the Flt Ctrl Laws, the High Speed protection should not be able to pull the nose up into/beyond the stall.
Of course, other factors e.g. THS position, CG, further malfunctions, Crew reaction time, may mean a stall can occur... all I am saying is the simple "aircraft uncontrollably pitched up into a stall and nothing anyone could do about it" line is not 100% valid
NB I am talking A320 series here - A330
may be different (but doubt it fundamentally).