1. The statement that the systems are similar is incorrect. There are several differences and always have been. For instance one can get 30 saints on a main hero and only 18 stars. Also stars give stats on 6 attributes, while a saint only upgrades 1 attribute. From a certain point all the stats added by a star upgrade are bigger then any saint could give you.

2. The difference of the amount of medals needed to gain a star is huge between heroes. Some need 6 medals, others need 150. If all would need similar medals, it would not be in our advantage, since Tynon would split the difference and the amount needed would be around 50-100 medals for each star/moon. In the end this won't matter, since it will be balanced out. However during game play this will mean no successful surprise heroes that walk up easily to a certain point regarding stars. I like that some walk up easily and some don't.