I've posted this on the Blizz bug forums, but wanted to see if anyone here experiences this as well.
If I pull a mob using Blade of Wrath, I only get 1 holy power instead of 2. Looking at it carefully, I actually see 2 light up for a split second, then it drops to 1.
Granted, this probably won't happen much at higher levels, as the 10 yard range means a mob will already be agro'd... but I often use it when farming old instances for transmog gear to pull mobs that much quicker... and it sucks losing out on a holy power.