This is the whole thing about colour accuracy. These are the tests. I read and watched a few videos where people suggested to use the Adobe DNG Profiler. It is somewhere between Adobe STD and CPP.
Adobe Standard

Adobe DNG profiler using CPP chart

CPP software

Just for grins, I just shot my Colorchecker Passport RAW in open shade. Actual shot ISO 100, 1/100 f/4. Processed in LR using my standard settings of Vibrance +10, Saturation, +20, ALL other settings 0.
I set WB by LR sampling the Neutral skin and Neutral scene patches in the Creative Enhancement areas of the target...the WB value ended up at 5700K. I output an sRGB image for POTN...
I wanted to see how visually different/similar your results looked, compared to an absolutely 'stock' LR interpretation of 7DII images.
It initially seemed that I see in my own shot the very subtle differences in color patches as you go left-to-right, as well as very distinct differences between the Portrait row above and the Scene row below. It seems to better mimic what I see with the naked eye looking at those patches on the target itself, whereas my perception is that your shots have lost saturation of those very subtle colors....but it appears that simply by lowering Exposure on your shot by -0.24EV brought the 18% grey patch to the density values that I usually find to better mimic inherent brightness and then the colors in the subtle Enhancement areas are more apparent.

Most of the documents/threads I have read say exposure is not critical as long as nothing is clipping. You are just capturing the light spectrum. It doesn't hurt to get a good exposure. 
