I think these rewards will change over time whne player dynamics change. Currently we have very little amount of players in the top levels. It's practically impossible to get beyond Gold without massive investment. I personally don't mind the Daily reward structure. But the season rewards massively favor those in the top. They did sink in  lot of money and they do deserve larger rewards. But when the gap is so large lower tier players are almost never going to beat someone who invested big bucks into the game making the game a little less competitive and more stale over large period of time.