It's not mentioned in the article, but I really think President Trump has been a savior for Twitter. Without those controversial tweets, Twitter would rarely be in much of the public's mind, and the company would have continued its slow slide into irrelevance. As it is, barely a day goes by without "Twitter" being mentioned in national news.
What are you talking about? Before Trump was a thing, Twitter was routinely mentioned in the news. It was the lazy source of react quotes: "Today, X tragedy happened in town Y. 'UnrelatedPerson' on twitter said 'what a tragedy'".
The name is more prominent now, sure, but it already was routinely reported in the news.