[His most recent adventures having to do with what disasters an overabundance of light can bring, Joss would be hard-pressed to argue with that.]

Used to think darkness was inherently bad. Heavy stigma against dark knights, in my homeland. Zodiark, Ascians, voidsent, all dark-aspected as well. But... too much light is no better. Balance is key.

[Heavy imbalance is how Ascians trigger the calamities required for a Rejoining in the first place, but even they cannot go too far in one direction. When the thirteenth Shard of Joss's world was totally overrun with darkness, it became an uninhabitable void completely unsuited to be merged back with the Source.]