So before 2.0 radiance was one of the best supers in the game. Now imo it's almost the worst. next to arc blade. For starters you used to be able to throw around 6 nades if you spammed. Now you can only throw 4. (if you run heart of the praxic fire you can throw 6.) This is because they shopped down our stat bonuses like int down by 40%.
Next they made it so void fang vestments with gift of the sun does not let you spawn with 2 nades anymore. Lastly you used to be able to self res and have your nade and melee ready immediately. this is no longer the case. If you die and you don't have a charged melee when you self res you won't have it. However the 2.0 version of the veil helmet on top of giving your health back on activation also gives your nade and melee.
So now you have to dedicate yourself in some way to a particular style for radiance. You can't have all of the good stuff in one build. While this directly nerfs radiance it also adds diversity in builds. anyway this was just a PSA.
-
I don't really like radiance anyway. I've always found voidwalker to be more fun.