Part of the danger of reading those articles as someone who is not actively involved in the research is that one gets an overly optimistic impression. They might say they achieved X, without saying they didn't achieve Y and Z. That's not a problem from an academic integrity point of view, since not being able to do Y and Z would be immediately obvious to someone versed in the field. But every new technique comes with a set of tradeoffs, and real progress is much slower than it might seem.