It was an interesting article and here is the quote by Jack Horner the OP mentioned.
"Anyone who would argue that birds and dinosaurs are not related frankly, I'd put them in the Flat Earth Society group."
I'm no authority on such matters but over the years I've read many accounts where claims have been made only to later find out that they've been hoaxes or upon futher study proven wrong. Evolution is no more a proven fact than creation. Both rest on a foundation of faith from what I can tell. Despite the continual search for the evolutionary "smoking gun" one hasn't been found.
This is true for many other scientific discoveries and pronouncements down through the ages. Hey at one time it was accepted scientific fact that the earth was flat. In the 70's scientists were lamenting global cooling, now it's global warming. I'm sure some are probably concluding that I'm against scientists and scientific research. No, not hardly because the world we live in today would not be what it is without scientists, inventors, and engineers. But, that doesn't mean that I blindly accept what these people peddle. Past experience show that they are wrong a good bit of the time and sometimes very wrong. For example, take the issue of eating eggs. At one point in time they were good for us, then bad for us, then good, and now somehere in between. Science does not have all of the answers. Some questions may simply be unanswerable by us humans.
I see this as yet anothe example to try and prove the unprovable. Perhaps I am wrong but I wouldn't bet the farm on it.