Attaching apoc to garg is valid too and would be cool but it would have to be old gargoyle without runic power ramp up.
I like death coil reducing apoc cooldown a lot better instead of Dark Transformation. Apoc is more impactful and cool to use than dark transformation. You can use apoc for single target burst damage more often and summoning more zombies every few second feels great and very unholy. Would be nice if epidemic had the same treatment with a reduced effect than death coil.
Unholy pact seems too powerful compared to the other two options its a must pick.
Unholy feels great to play right now except for some downtime on runes which i cant feel that much when picking unholy assault, harbinger/pestilent pustules talents, and good rune/runic power usage. Downtime is probably a lot worse if you dont pick these talents to smooth up rune economy.
All the whining seems like people afraid of changes i hope you look past that and keep the changes.