Hmm… For me the droprate is fine, i barely use them:
When i don’t have a good hero in a certain class I rather save them. With the amount in stock and the time emblems exist, i think I get 2-3 per month and in average use less than one per month. Droprate is fine imo. I’d rather see other things in loot increase.
But I agree, with all the food and iron you won’t get back, this limitation isn’t really necessary