. . . There’s nothing like it in the world and the fact that nobody has been able to reproduce it at this late date, plus the fact that it reveals a knowledge of crucifixion utterly unavailable in the 14th Century, plus the fact that the pollen is traceable and dateable to 1st century Palestine screams “authentic”. Only an a priori commitment to materialism fuels the mulish insistence that it’s a fraud. If it’s a fraud, make another one.
Minor objection: I don’t think the pollen is dateable and confirmation is needed to be certain about tracing it to Palestine.