I think everyone is taking this article at face value and not looking at the big picture. Fortune magazine is written for investors. It is their job to basically talk up an investment opportunity. That being said, here is what I gather from this article.
Railroads have traditionally been considered long term, safe holdings. They produced a dividend and were analogous to holding long term bonds. Their growth was not spectacular but was consistent and solid in the long term. If you look at Union Pacific's stock growth chart, you will notice that the growth was very modest until 2010. The stock rose quite rapidly from there and you can see the huge slide in 2015 which dropped almost as fast as it rose. It went from a high of 107 in Feb of 2015 to a low of 60 in in Feb of 2016. Then it began to rise once again and this time it shot up. Presently the stock is at 220.
This is analogous to what occurred during the tech bubble in the 1990s and the telecom bubble in the early 2000s. Back then, the news and pundits were hyping the companies generating a lot buzz for the small investors (day traders) to wanted to invest their money in the hopes of making it rich. Recall how stocks of companies such as pets.com, napster, and Geocities were hyped to generate investing interest. The telecom bubble was the same story with such companies as Worldcom, Qwest, and XO communications. Even companies in the energy sector were over hyped-anyone remember Enron? Later examples were in green energy with companies such as Solyndra. But the question was, who became rich? Certainly a handful of day traders made some profits but it was the investment funds who walked away rich on the backs of the day traders while the companies began imploding.
Fortune magazine isn't writing a puff piece about Union Pacific because they want to make the company seem like it is something that it is not. What this article is about is generating investment interest from the small investor. Get the average Joe to sink his hard earned dollars into the company. The stock goes up a bit and the mutual funds then pull out leaving the day trader stuck with the sinking ship. Don't forget, these fund managers have to recoup their funds that they lost on the Gamestop incident. Personally, I think certain investment funds have decided that Union Pacific has gone as far as they deem safe and is becoming a risky investment. They want to pull out but if people catch on what is going on behind the scenes, Union Pacific's stock would plummet. Therefore, they must hype the stock so that more money is going in than what is being withdrawn. These funds can then start selling their shares.