According to the Israel Museum exhibition notes  (http://www.imj.org.il/exhibitions/2008/MNR/english.html)

"...the French government continues active provenance research and restitution efforts. To help illuminate this ongoing process, the Mattéoli Commission, formed in 1997 by
then-Prime Minister Alain Juppé to study the matter of Jewish property
restitution in France, recommended an exhibition of MNR works at the
Israel Museum at the appropriate time."

In light of this statement, we may see this exhibition as more of a PR effort on behalf of France to counteract all the anti-semitic news emanating from there recently. It's in the museum of Israel as proof that France is investing time and money in trying to amend historical wrongs (even as it fails to suppress contemporary religious strife). 

That teaches us something--simply dismissing an art exhibit as boring without reflecting on its cultural and political context does not.