Some of them are pretty serious consequences of using their services: some of them involving the company's practices, and others involving the dangers of developing this industry. Both should be considered in separate to get a clearer picture of the issue. This article is treating it as BuzzFeed treats a new game of thrones episode, therefore depriving it of any legitimacy.
I'd like to see more elaborated on three points particularly: the privacy implications of having your DNA shared, the accuracy and precision of the purported results and the possible dangers of applications of this industry.