I've come across it looking for other books. Since it is a work of fiction, I did not give it much attention. After reading the comments in the article your referenced, it's not something I would purchase or check out of the library.
So when is this "Old Enough To Know Better" supposed to kick in?
I've seen references to it - fiction with a lot of historical errors and fictitious characters interwoven. Another attempt to cash in on the sesquicentennial of the assassination using 19th Century Victorian characters with 21st Century attributes.....
"The Past is a foreign country...they do things differently there" - L. P. Hartley
I'm like Gene-in that I don't pay much attention to fiction. I also don't care to read the novels with different endings-like the ones Newt has written. Not anything wrong with such things-just a matter of taste. This author is well-educated-has 3 Masters Degrees.