But now that the dust is settling, people are realizing that this technology is not flawless. We haven't fully 100% mastered it, there are unsolved problems, and maybe it's not quite ready for a broad deployment just yet.
That's normal. It's just the way the hype cycle works. People (and the media) quickly get really excited and build unrealistic expectations, then they become aware of the flaws and limitations. That doesn't mean these kinds of systems can't be better and even more useful in 1-2 years. There's a lot of really smart people working on them with many possible paths to address the current limitations.