You really saying that rune system benefits us? lol.
Atm runic corruption bugs it for bad, not for good.. 1st, % seem kinda lower than 45% (most of times 4 coils or 5 and 0 procs) 2nd, when u get RC proc your runes don't get the speed till u use any other spell, in the case u get runic corruption effect and all ur runes are loading, sometimes u just can't do anything, waiting for any rune to end his loading time to be able unbug it and be able to use spells. :/
About this necro thing you say, its not a bug and happens because if your blue and red runes are in CD, RC proc make them 4 load faster and u get the respective 4 death runes.. which can be used for 4 necros..