Sadly, OPs linked claims don't tell us anything about Kansas' performance under these tax cuts which is really what matters since the point of the tax cuts was to supercharge growth. Did that happen? I'm going to say no:
http://econbrowser.com/archives/2016/10/the-kansas-economy-t...
http://econbrowser.com/archives/2016/12/trends-in-kansas-gdp
Predictive value of conservative "freedom" rankings:
http://econbrowser.com/archives/2015/07/the-information-cont...
Commentary on Kansas budget by former Kansas Republican Budget Director (former for both):