There's no obvious way that a single break in the supply tank filling pipe, or a single failure of a fuel pump or valve would starve both engines.
In cruise attitude will the rear transfer pump reach the last ~95 litres? Wouldn't failure to supply one engine mean failure to supply both?
There is also a rider in the statement: "in at least one system configuration". That seems to agree with Eurocopter meeting the certification condition without any doubt. It's very loosely written, but I'm sure their submissions for certification satisfied it.
No doubt. DH Comet was certified? Concorde?