Over the last two days, Blizzard has responded to more feedback on the Rogue Rework in Patch 10.2!
Fun Fact! As an Outlaw Rogue, if you take Killing Spree with Dreadblades it will kill you even with Cheat Death ready. As funny it is we gotta fix that “Killing” Spree part.
Thanks for the heads up – this is now fixed internally and will make its way to PTR in a future update.
For now you can save Cloak for the debuff, or try to avoid using Killing Spree during Dreadblades.