It often takes decades before a revolutionary technology is first discovered/invented, to when it js implemented. Not only does the end product need to work, but its constraints need to be practical, it needs a process that is economical, and it then needs to be scaled up, and the issues caused scale need to be ironed out.

As such, once the technology is actually implemented, it seems like a much more incremental change than the leap forward that it was a decade ago.