Nope, that same author has tons of papers about exfiltrating data from air gapped systems using many different mechanisms. Copycat is the wrong way of thinking about it. All different but do the same kind of thing.
The value is pretty limited when the answer is consistently and predictably "Yes".
The author is clearly an expert in exfiltration and has deep insights in the area. But instead of working on presenting the big picture, prefers to throw breadcrumbs to the community. After a dozen of "exfiltration using X" papers, one would at least expect an SoK paper.
I know of at least two security-related workshops that explicitly call for "negative results". So, even failures in this research field are definitely publishable, if accompanied with adequate insights.