They should make all daily rewards exchangeable for 1 crate gem. Still would take like 3-4 years to get a radiant that way, but it would be a nice little bonus and help with the inventory clutter. Most of the stuff is completely useless to a seasoned player.
It would be nice but seeing as how inventory management is what pushes people into subscribing, it seems that flooding our inventories with consumable daily rewards is intentional
"Could you post me a link to the official MMO rule book please." - clayandaudrey_ESO