"For singleplayer, the player would usually reload battles lost by bad luck, but not the ones won by good luck. He ends up cheating in a sense even without save scumming."
Which was portrayed as an argument against RNG, but is completely illogical.
I don't think it's hard to understand. Reloading battles would cause statistical bias just like reloading a CC check. And it's difficult to avoid unless the player examine the statistical distribution carefully, or save far apart. He doesn't necessarily cause it intentionally.