The landing page link allows for playing around as long as it doesn't fall under research (you cannot cite these is my guess). You cannot republish either. But

The landing page link allows for playing around as long as it doesn't fall under research (you cannot cite these is my guess). You cannot republish either. But the data are facts and can be used. The presentation falls under copyright. Not sure where this leaves you or us legally. In the end it's a public link, containing public data with the organization of the document being copyrightable. The author has another link somewhere else with terms excluding activities. Definitely in the gray area. Punished unlikely. In the clear if someone has an ax to grind unlikely. Probably best to just ignore in the end.