I'm a mite skeptical about a single author study with a curveball hypothesis... Don't get me wrong, this isn't a debunk, so much as the author fired a shot across the bow, it's eye opening and cool science, but the way science works, the rest of us get to try and replicate
and shoot back, even if we don't replicate
A stack of issues here that suck the author brings up - Bat declines, infant mortality increases, insect number declines, crop yield compromises. There are also other issues the author doesn't touch on- way higher rates of later Parkinson's disease in farmers with significant exposures to pesticides, declines in insect eating bird numbers, lots of those locations where bat fungus is most noted overlap with- in the last two decades- with a new emphasis on fracking (ie might changes in groundwater be important here)
There's another thing troubling about this whole analysis, all Mortality in Covid era was higher. US life expectancy declines were very real.
the author doesn't mention COVID and it isn't entirely clear to me the date ranges studied included COVID era data or not.
A 2021-22 decline was also seen in Infant mortality:
provisional infant mortality rate for the United States in 2022 was 5.60 infant deaths per 1,000live births, 3% higher than the rate in 2021 (5.44). The neonatal mortality rate increased 3% from 3.49 to 3.58, and the post neonatal mortality rate by 4%(from 1.95 to 2.02) from 2021 to 2022. Mortality rates increased significantly among infants of American Indian and Alaska Native non-Hispanic (7.46 to9.06) and White non-Hispanic (4.36 to 4.52) women. From 2021 to 2022, infant mortality rates increased significantly for infants of women ages 25–29, from 5.15 to 5.37. Mortality rates increased significantly for total preterm (less than37 weeks of gestation) and early preterm
Source:
https://www.cdc.gov/nchs/data/vsrr/vsrr033.pdf
Agricultural counties with significant pesticide use are often dozens of not hundreds of miles of neonatal and pediatric ICUs, let alone declines in physician numbers and Obgyn in non urban areas in the USA. This is an ongoing/worsening problem, add to that small hospitals in underserved areas are closing.
This map pretty much overlaps the map the author puts in for bat declines, it's hospital closures or conversion 2005-2024, conversions meaning no inpatient or critical care emergency services:

Source:
https://www.shepscenter.unc.edu/programs-projects/rural-health/rural-hospital-closures/
Here is the bat white nose figure the author uses:

Just for visualization to that oil and gas wells per county....
maps.fractracker.org
And add to that OBGYN residents aren't super interested in training or lining up to work in states post DOBBS decision where they might be imprisoned for delivering what in other states is standard of care therapy. source:
https://www.aamcresearchinstitute.org/our-work/data-snapshot/post-dobbs-2024
So yeah, the worst part about it, criticism is easy, solutions are hard....