Amateurs have not been prejudiced by the dogmas of academic archaeology and use common sense to identify concentrations of tools and art. A real science is always open to anomalous finds and has a way to accept them or reject them based on its developed methodologies.
Despite the occasional call for more involvement of avocationalists, Archaeology does not operate in this way. Archaeology blows off amateurs with novel observations as if it already knows all there is to know. This hubris renders Archaeology impotent to do the work required to identify the material culture signatures of the earliest Americans. With a continued focus on flaked chert tools as the required evidence of the earliest Americans, Archaeology will never identify who they were.