I'm no economist but I played one on tv. But a quick internet search showed me this increase has more to do with Americans growing confidence in the US economy (and not mush to do with any tarrifs) and they are spending more on all good including those made in china. So fake news from Huffpo
Actually, you made a very good point that often is over-looked with all the hyperbole regarding trade. It is completely normal, and expected economically, for a wealthier nation to import far more than it exports. The wealthier a country gets, the more it buys and the less equitable it is to make lower margin items domestically. It is one of the reasons tariffs can't and shouldn't be used to force equality. All it does is end up pricing up goods to the consumer and eating away at that wealth. Mass tariffs like this, usually were the parlay of Progressives as they were a means to central plan equality and redistribute wealth on a international scale.
Not a popular thought among populists and progressives that the market will take care of itself, but it will.