JV simply needs to benefit from artifact traits that buff our TV. It is still viable for PvP, world content and tank+4dps Mythic runs.
Don't diss Judgment of Light. If you look at logs, it does 10-18M raid healing on Mythic Ursoc for Prot and Holy, for essentially zero cost.
If there is no Holy/Prot taking it in a raid then it is a good idea to have at least a Ret pick it - it's not like we depend on the other talents in that specific row (definitely not in 7.1.5)
Not fitting the theme of a talent row is not really a concern since Blizzard specifically told us before that they want to avoid giving a theme to every row for every spec. (our 1st, 2nd and 7th rows do not have a clear theme already)