I've heard that excuse and while that may end up being the case, it is very hard for me to put faith and money into a scientific test that has no validation. I've been around the block in research and development a time or two and it just goes against everything I know for good, valid science.
I agree with this, however, I do see how that could be a compelling case. Regardless, a paper would be nice, until then, I am trying to collect as many pictures of tested horses through Pet DNA as I can, so if you do test, let me know. Working on a theory of my own, so need lots of tests, but without a poneh of my own, I am out of mane samples lol.