Ret needs the heals though, that's what people don't get. We don't have no DbtS, Dispersion, Shield Wall, Barskin, Survival Instincts, Defensive Stance, etc. All we have is a physical immunity, that's dispellable, a pure immunity, that's shatterable, and Divine Protection, which is actually a decent 40% magic damage reduction, (which is really the only nice one), or we can Glyph it to be a Barskin that we can't use while stunned. Our heals need to be high, as it's our only consistent defense. At least next patch Exorism will cause the Glyph of Templar's Verdict to work, that way we have some consistent damage reduction.
Also, I think people have forgotten that Ret is supposed to be a DEFENSIVE spec. It's why we wear Plate and have healing capabilities, with a lack of effective consistent damage. And the only reason our defensive system is based on heals, instead of damage reduction, is because we're a support class as well. I just don't see how come that's so hard to understand. So what? Pulling out a 190k CRIT heal on an ally about every 20 seconds. It's not even the health percentage of s11, and on a longer rev up timer than the CD back then, and now it's even preventable by dispelling. If you really wanna prevent it, use a Wound Poison on the Ret, drop it another 25% on top of its already 30% nerf. Don't forget Nerve Strike and Necrotics. Healing reduction or prevention is the direct counter to a Ret's defensive and support abilities. Besides, Ret can only heal so largely on allies. If you're really concerned about how large the Ret can heal, tunnel him. His heals are reduced on himself. You'll get to cut off his support and force him into playing defensive. You knock out two birds with one stone by tunneling the Ret.