That's not really the strongest interpretation of GP's statement. It wasn't implying that nobody would ever share source code for any reason, but that the company would deliberately decide to share source code in order to obtain fly-by-night compliance with government requests while maintaining its public image.
That happens all the time too, and I'm sure Apple is no exception. Want to score that big NSA storage contract? Pony up your HDD firmware... for "security assurances." Suddenly, NSA has exploits for all 7 major HDD manufacturers.