It has nothing to do with reverence. They are scared to death that it will turn out to be a race other than American Indians. This would suggest that the current batch of American Indians committed genocide against the previous inhabitants of North America.
There are significant implications for all of the entitlements that American Indians now get, if it can be proven that they are not the original inhabitants. A good lawyer could make hay out of it.
Consider this... their entitlements are entirely based on race. If they are found to have derived from Caucasian as well as Mongol or other sources, the proper court case could "Jeopardize their Satanding"... after all, nobody has yet managed to deicide whether someone who is half Jewish is really Jewish or German OOPS EXCUSE ME... Wrong National-Socialist country here - I meant to say, whether someone who is half Black is really Black or American... Or rather, actually what I'm trying to say is -
I think I better shut up now
Wow! You can tell all that from one 9300 year old set of remains? Wow! You ARE good!
Or maybe American Indians just had better survival skills than this so-far ficticious race that people are hoping and prayer were here before.