That basically helps rule out scammers or gross incompetence and ensures that even if initial attempts to replicate fail because of the complexity or lack of clarity, people keep trying.
Any physicist can make up something that sounds reasonable to other physicists. With a little trick photography (or CGI!) you can make a video something levitating that looks like room temperature super conductors.
Don't read the above as an accusation. Only a justification to wait until it is replicated.
That basically helps rule out scammers or gross incompetence and ensures that even if initial attempts to replicate fail because of the complexity or lack of clarity, people keep trying.