A desire to go beyond what we've been taught is The Truth, to find out for ourselves if there is any merit to the claims being given.
The media that most people are connected to are controlled by a small group of people; such people do not wish for such information to be commonly known.
Most "scientists" these days are nothing more than religious converts who have simply accepted as true whatever they have been taught. Those in a position to teach have their own entrenched reasons for rejecting what used to be science (hypothesize, experiment, verify/falsify). Again, the vast majority of people have been put through public "education" systems which are controlled by a small minority. That many so-called scientists started out in such institutions would explain much.
It all depends on whether the suppression of the technology is successful or not. Let's take the optimistic road. If the technology is embraced and let loose then we would see some extraordinary things come to light--things that we've all been told are either too expensive, too impractical or simply impossible. It would also mean that the dominant power structures that are in place now would cease to be as dominant as they are now. The pessimistic road means that it remains underground, the dominant power structures accrete more power to themselves, and we all will suffer greatly for it.
We're on the brink of revolution in technology, assuming it doesn't get suppressed like all the rest. The implications are vast; some of the areas that would be affected are power generation, communication, and travel. For the first time in the history of the world, all of these gifts can be easily and cheaply given to anyone who wishes to have them. But only if the currently installed power structure wishes to allow it. Judging from the past, it would seem that they're not going to.