I also got Radiant Shards from killing Crota. 2 Radiant Shards. If I'd have received 10 I'd be ok. 2? Not so much. My jaw hit the floor. So I got the same reward for killing the end boss as I got for getting the free random chest in the very beginning? Not good, Bungie.
If the run hadn't gone so great I'd have been so upset. I couldn't be though since it was so fast. Bungie needs to learn a better balance between giving too much loot to extend your game and frustrating players too much.