The likelihood of the JavaScript trademark bringing any real benefit to Oracle in the future is close to zero, but the legal costs of taking it to court are significant. For the sake of mere spite and mean-spiritedness they seem to be trying to waste the company's money.
Yes, the only upside I can see for them is it reinforces their reputation of being ruthless in legal proceedings. Which you might consider a good thing if you subscribe to the "it is better to be feared than loved" philosophy.
