It sounds like they need/want more research money, and what better way to drum up funding than to imply that humans will die off unless we can research this and find ways to protect ourselves.
In my more than 6 decades I seen this sort of fund raising by scientists increasing. One reason for it is the massive increase in research without the corresponding funds to maintain the needed level funding to each one required for quality research. And of course the fake research mills sapping a little of that funding when they can dup some people controlling the research funds.
The other area to grab more money is to announce breakthroughs long before they have the science or experimental evidence.