I'd say NV still fits that role for talents, if one so desires.
For DoC, why it doesn't provide a damage component for Guardians is likely due to the size of the heal. In our flex raids (ilvl downgraded to 506), I was easily getting 400-500k HT crits w/o high Vengeance on a regular basis (baseline zero Vengeance HT heal is around 75k on average for me). The downside is that using HT requires a GCD, which could be used for an offensive damage ability. Be that as it may, the healing done by a single HT while actively tanking will rival and usually beat Renewal. It turns out to be a choice between a little less damage for great healing potential.