Now that we have yet another upgrade material, it would only make sense that this would be a reward for the Dark Below missions when selected for the Daily Heroic Story. This would allow those of us who bought the DLC to have another way of getting radiant materials. I might actually be excited to see a dark below mission as the daily now! I'm sure many would agree with this.
Post below if you would like to see this happen!
-
Actually you can get radiant materials from daily, chest in patrol, and even public events buts it's even rarer than ascendant materials