On the contrary, the problem is that there may be something there which deliberately won't be found. It is well known that there are Israeli archeologists who are quite willing to distort their finding in a way which will promote the zionist agenda. The dig should be done by an international group so that there is no intentional distortion of the findings.
World Jewish Congress: Nazi train treasures must go to rightful owners (Reuters)
from the article: Petition slams Tel Aviv University's involvement in East Jerusalem dig