in all honesty it's good that they released the benefits of 2013 a year early
the qualification levels were late, but that was due to the retooling and need to release the levels and benefits together, there would be a bigger uproar if they released the new 5 levels without any associated benefits
regarding the names they should really call it P, E-, E, E+, SE to reflect what it actually is
i don't think they can change the mileage accrual rates till 2013, they're wrong either way unless they let people buy up without a change fee