The Warcraft Logs team have been doing a fantastic job of translating the new 10.1.5 combat log hooks into post-encounter feedback via reattribution to help players fully assess Augmentation Evoker's performance. In addition, Warcraft Logs is currently developing a damage meter overlay that will update in real time allowing you to see exactly how much an Evoker is contributing in the moment!
Though the WCL team has been knocking it out of the park, they wanted to remind us that there are still some issues with Augmentation Evoker combat log reattribution that players should be aware of as it may effect perception of an Augmentation's performance.
These bugs will likely require additional work from Blizzard before they're able to be addressed by WCL.