Seemed normal to me with my runs today, and I refreshed energy twice. I do feel that the drop rate of some of the purples like stun cuffs need to be increased though, and some adjustment to the daily challenges in the rewards department as some pieces of gear I can never get enough, while I have hundreds of other ones at the same level.
With tier 11, and gold gear out now with tier 12 on the way there is more reason to increase drop rates of some stuff. I frequently spend about 150 or more energy and not get a single 1 out of 50 of something I need, and that piece of gear can't be obtained in challenges for instance.