What seems to have been missed is that to recover from the incipient spin one would normally have input hard right rudder reduced aileron and stopped the turn. In his situation the pilot did not have that option as that would have put him out over the crowd at best or into the city, even worse. He had no option but to continue the turn and accept the consequences.
While getting into the situation in the first place was not good, ultimately he may have sacrificed himself and his crew to save other lives. RIP