Margaret Wente  likes to be controversial.  

There is nothing wrong with that.  Judging by the number of posts following most of her articles she is widely read and her opinions much debated.

In this case she references a study that prompted the following article in Fortune Magazine, hardly a left wing periodical, with a byline that said: "The Seattle Minimum Wage Study Is Utter B.S." ( http://fortune.com/2017/06/27/seattle-minimum-wage-study-results-impact-15-dollar-uw/)

You can say anything with statistics and I would bet that the confidence interval for this one is very low for the reasons given.  No other studies that I am aware of have found any significant impact on employment created by minimum wage hikes.