All right, thanks for the tips.
For Fatal Echoes, it might be enough to just add a note to the Corruption section that says it's ok to prioritize continuing the drain cycle whenever Fatal Echoes procs.
With Wrath of Consumption, is the point to keep uptime at 5 stacks as much as possible? It seems pretty situational based on the encounter, but it wouldn't be hard to add a section for this ability and I can see that in some fights it might be helpful to see.
Does Compounding Horror actually affect the rotation? My impression is that it's more like a bonus buff that you don't need to actively track. If it doesn't change your decision-making I think it would be best to not mention it here, to avoid confusion.