Actually, FlexibleResponse, the bleed duct from the APU to the number two engine is longer, as it must go forward, then aft to the number two engine.
As to the APU being a bit weak in hot/high conditions, lets just say it was just slightly underdesigned.
As for the electric hydraulic pump C/B's, there was at one time an airworthiness directive about the pumps, and the wiring thereto, but this has long been accomplished on all aircraft by service bulletin terminating action.