I do not find it to be pertinent, 1 it would require invasive legislation, 2 it would tell a room full of legislators with no required accounting experience that all contributions are 'savings'. Considering the way they treat Social Security 'savings' I think that'd be quite dangerous.
I agree that they shouldn't be considered the same thing as a "hard" savings. The statistic should be left as it is. I am merely saying this explanation does provide some perspective about the situation.