The point of the editorial and my post is that it is very difficult to separate the influence of the tax changes from other influences at a macro level.  This holds true for the Kansas economy.  Thats's all.
If you choose to believe these other influences had no effect then then more power to you. Personally, I'm not so sure.  I've studied some of the academic research concerning Kansas and found it inconclusive.

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Here's another link to the Kansas farm economy.
"https://www.ksre.k-state.edu/news/stories/2016/06/farm-income061616.html"