Heroic obviously had its problems with drop rates as I also had to hustle to get shards. I remember trying to get the last shard on an area, I used all my knights twice , running through a stage repeatedly and didn't get the shard. Cmon really?
But there should be something for levels over 100 now that your flying up. When heroic first started I was level 130, now I'm almost at 300. There should be something gained for having your char so high.