That's the problem, even with every possible option disabled there is currently no way, even through about:config, to keep Firefox from phoning home at these po

That's the problem, even with every possible option disabled there is currently no way, even through about:config, to keep Firefox from phoning home at these points in its execution lifecycle. The telemetry settings they provided basically amount to, we'll phone home to Mozilla either more or less, depending on your settings.