Another part of the significance of this exhibit is this: If no one could ever find physical artifacts confirming the existence of people and places specifically named in the Bible, then you would have cause to question whether or not the Bible was describing reality.
Some religions do indeed have that problem. They have nothing in their scriptures that is historically verifiable. For example, the Book of Mormon describes in Alma 11:5-19 an elaborate New World coinage system. The book also lists many New World individuals and places. This page illustrates all the coins and artifacts that have ever been found to verify those references--none. This is consistant with the opinion that the Book of Mormon is, apart from Biblical quotes and paraphrases, entirely a work of fiction and is not a sufficient basis for one's faith. No civilization has ever minted coins only to have every one of them vanish completely; at least a few can be found buried somewhere.
Is your faith backed up by reality?
[no coins to illustrate]