Holy Shock heals for less than Flash of Light.
Word of Glory heals for less than Flash of Light.
Until we start having mana issues (81+), there is no reason to use either spell unless you're moving.
Well, if you want to use buff Divine Light, you could use Holy Shock to proc Speed of Light and then use it on a Divine Light (don't waste Speed of Light on a Flash of Light, ever!). But I covered that in the previous post.
My mistake then to have thought that Divinity still affected it.
That even further reinforces my point though. Prot and Ret should have been able to keep both debuffs up with ease.
Holy Paladins using JoL were clearly just padding meters.