This build goes for full damage fragments as it assumes that you have a team that's also built into feeding you massive amounts of orbs like you are for them. If that's the case, you'll be in Well of Radiance so frequently that Radiant and Restoration effects will be overwritten so regularly as to make focusing on them pointless. So I've built into making Ignitions from Ember of Combustion more deadly.
If you don't have a good team, then you could drop Ember of Eruption for Ember of Empyrean and Fusion Grenade for Healing Grenade so that you're better able to keep yourself alive in between Well activations. You could also drop Char or Ashes for Torches so that you can quickly make yourself Radiant with your melee, swap to your GL and break Barrier Champions if you're not able to kill them quickly enough/no one else has Anti Barrier. You will be getting less Ignitions, however, because you'll be applying less scorch either way.