Yes the energy base rate is doubled, which is the only part that would warrant the drop rate change to 50% (Along with 2 refreshes at 50 crystals would be the equivalent to 1 at 100) but that is where the refresh rate cut in half logic applies.
It doesn't even account for the single bonus energy of 45, so actually for the 'free energy rate' that you get from the game would have been 120+45 =160 this is now 240+45 = 285 so is short of the 'half the rate' of 320 as it should be to warrant this change.