In Blackest Night, Barry Allen was given the Blue Corps ring, because he embodied Hope.
Because this scene could be interchangeable with with almost any scene of Batman visiting an inmate at Arkham/Blackgate, couldn't it, without any real changes? And I don't see Bruce getting one of the blue rings anytime, do you? (Then again, since now Barry's parents are tragically dead, the Batman modus operandi makes sense...)
Nope, Barry doesn't seem too hopeful about Digger's future, does he? Unless, of course, hope means showing up in jail to threaten prisoners.
This is why they insisted Barry Allen come back?