I’m not thrilled with that conclusion, either.
However, the blood abnormalities, easily apparent with simple tools, tells me something very bad is happening. That part of the study makes it very worth it.
If the results are reproducible, that is helpful and concerning.
When I see conclusions or discussions that push normative science, I believe the research needs to be subject to much closer scrutiny. Federal agencies have been caught pushing normative science for several year.