First, I'm guessing the endorsements are the same or similar to those phony ones attached to anti-climate change "science statements" issued by oil companies and big business "think tanks." Half the scientists listed didn't even know their name was being used.
Second, consider the source. A website starting out with "catholicintl" may give a bit of hint as to why the authors want to defend the Catholic Church. Yeah, like they'd never deliberately lie about anything! Kind of like hearing an apologist for John Wayne Gacy and the explosive new detailed and comprehensive treatment of the scientific evidence supporting why he had no idea how 36 bodies ended up buried in his crawlspace. Come to think of it, I'd probably give Gacy more credence.
My favorite is the one after Martin Selbrede. Impossible to search for. Can you guess why?
"Robert Sungenis and Robert Bennett have done a great service to science and to men of good will. Those who see the universe as the handiwork of the benevolent God need no longer be subservient to fairy tales" (Anonymous, Ph.D., MIT)
You will laugh at what my Google search for Caryl Johnston turned up. At least 4 of the results turn up, through different links, the very page in the OP: Google search for Caryl Johnston
It's interesting what I found (or, in some cases, what I didn't find).
P.T. Barnum put succinctly what organized religion has known for centuries:
"There's a sucker born every minute".
At least the "Left Behind" series are at least sold as fiction.
There is much delusion out there that one must avoid reading, one can only hope that the Galileo book won't be featured on the front table at Barnes & Noble.