Resource Cap is Dumb

I played dungeons for 11hrs strait and it was alot of fun however I have only one issue...

If any devs are in here, why is there a resource cap for emeralds and shards. If I want farm to 1 million and then re-roll until I have the perfect build I should be able to. The fact I need to farm 100 shards, re-roll, then farm 100 shards again is kind of annoying. Unless there is a technical reason that I'm unaware of, there is no reason to have a cap from the balancing side of things other than to making builds more annoying.