>>58776380To me, it makes sense. The Paradoxes of the past all have dinosaur-like traits, which corresponds to the Jurassic period. A time when it was constantly 5 to 10 degrees warmer than today. It's as if Koraidon brought back the conditions of that era. The CO2 concentration was higher, and the animals were a bit larger; it fits well.
So I don't think putting the sun in Reshiram makes as much sense.
However, I think a rework of the stat distributions, abilities, and the effects/power of certain signature moves would be a good thing to make the old legendaries relevant again.