With the new hotfix patch, all Crota's End raid gear automatically have 30 light.
But this isn't fair to those who spent the exp and the radiant shards to level it up naturally. For me at least it was over 14 shards down the toilet with the new patch.
GIVE US BACK RADIANT SHARDS.
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Not like your shards are wasted, the raid armor just starts at a higher light level. The upgrade path is still there with radiant materials required.