This has happened since the dawn of the computer age, and probably before. Any technology too complex for the managers who purchase for it to understand fully

This has happened since the dawn of the computer age, and probably before. Any technology too complex for the managers who purchase for it to understand fully can be sold and oversold by marketing people as "the next big thing". Managers may or may not see through that, but if their superiors want them to pursue it or if they need to pursue something in order to show they're doing something of value, then they're happy to follow where the marketers lead. Java everywhere, set top TV boxes, IOT devices, transitioning mainframes to minis, you name it... the marketers have made a mint selling it, usually for little benefit to the companies that bought into it.