Oh, it still exists. It's not quite so obvious anymore. If you look at Simcraft, though, you'll see the majority of classes that have healing specs ARE the lowest dps classes. It's not an accident.
The only thing that will fix Insanity is a redesign.
Healers are pretty self-sufficient now. Plus, if you're channelling Hymn of Hope, you're therefore not doing much DPS, and thus are not pushing content, often with strict enrage timers.If you're not using hymn if needed (I play 10, I think this doesn't apply to 25 to the same degree) then you're doing it wrong.