Any experiment should be repeatable. Has anyone else been able to duplicate those results?
Moreover experiments that are repeatable that show unexpected results should be repeated rather than shunned. In the case of dino bones there seems to be a battle for resources. Some labs refuse to test them because after all, C14 tests are not applicable to bones that are millions of years old. In one case I read about, some young earth creationists actually sent unlabeled dino bones to a top lab for testing...so that the lab did not know the samples were from dinosaurs and tested them without pre conceived bias.
As far as I have been able to read, all tests of dino bones so far, of which I am not sure how many there are...and keep in mind most dino bones are fossilized, thus can not be tested this way...have been found to be within the testable limits of C14...less that 60K years. Some are listed on the link I provided.