"The answer, of course, is Donald Trump and the bizarre dynamics of the new presidential administration – where heaping praise on anything that Donald approves of, and lambasting anything he doesn't like, is an effective way of gaining political advantage."
This is no different from Obama's administration. In an April, 2017 paper entitled "All the President's Friends: Political Access and Firm Value", Jeffrey R. Brown and Jiekun Huang from the National Bureau of Economic Research reviewed 2,286 White House meetings between Obama officials and executives from S&P 1,500 firms. You can probably guess what their findings were: "corporate executives’ meetings with key policymakers are associated with positive abnormal stock returns. We also find evidence suggesting that following meetings with federal government officials, firms receive more government contracts and are more likely to receive regulatory relief".
You could do the same study of the FDR administration or the Thomas Jefferson administration and probably find the same basic outcome. Getting on the good side of the man in power is just smart business strategy.