Being a phd. myself, I would say it seems likely that the person in question wasn’t aware of the research/sweeps that had been done, and was searching through literature with the express purpose of finding out what kind of work had been done on the subject, when they came across this data.
The way I usually find out about a research campaign is by reading articles from said campaign. It’s very rare that I’ll need to reach out to the authors to ask for more data than what is available in their publications.
Wow, you really must be an actual idiot. I’m honestly kind of impressed.