I have used all the talents pretty extensively in testing, and have decided that DoC in particular it is not worth it from either a DPS or Healing perspective.
The main flaw with your DoC play-style is lack of CONTROL, and loss of DPS (if needed). Leaning too heavily on WG and DoC, and their "dumb" smart healing, should be done carefully. The scenarios where the new smart healing model generally has low enough over-healing are also ones where raw HPS is also typically needed, and NV or HotW would be better choices. SotF in itself can be a solid choice, but only if you can justify losing the mana reduction from ToL, and over-healing (where 90-99% "bad" targets are uncommon) is not an issue. The latter may be comp specific.
Call me "old fashioned", so be it. I value experience
Lets look at one fight I really question the choice of DoC on, Gruul. Your log is actually exactly as I would expect from my testing, below average DPS and only average HPS. NV would have netted at least 1-2K more DPS, HotW up to 2-3K more, with NV at least equal to your DoC HPS. Additionally, even with all that DoC spam (which still had ~30% overhealing) it appears that you OOMed with 40 seconds left in the fight. I have to disagree with DoC for that fight from both a DPS/HPS perspective, and your log confirms that for me.
On a side note; I would have also used ToL instead of SotF. It would have been nice for the 30 seconds or so leading into the first rampage (started 40 second prior) and for the full 2nd rampage; the mobility of regrowth saves, wider WG coverage, and the rejuv Mana CD would have been nice. As seeing you went OoM at 5:23 (8k mana) and stated that you use rejuv heavily during rampage, it would have fit your spell selection. Also, considering SotF+WG had ~50% over-healing, it feels like SotF was not really benefiting you.
Edit: BTW, the one fight you did get a "99th percentile" rank (GZ BTW), was where you also recommended using: HotW + ToL + Germ (Oregorger); which is what I also recommended as a solid choice for BRF progression