Why is Israel suddenly praising Iran sanctions?

Harel, in Haaretz/ here

"... The official explanation for this stance is connected to the assertiveness that U.S. President Barack Obama and his administration are showing vis-a-vis Tehran, alongside the decision by the Obama administration to nix plans to deploy missile systems in Eastern Europe. That move is expected to help in getting Russia to hop on the sanctions wagon. 

But there are other factors in the background. The dialogue is the penultimate exit stop before the scenario of a military attack on Iranian nuclear facilities. The talks are expected to go on intermittently until December, when harsher sanctions are expected. 

Israel, from its point of view, now needs to show the Obama administration and the international community that it is a team player, one that supports exhausting all non-military options. At some point in the future, there will come a time when it would make sense to once again threaten to attack Iran in order to pressure Tehran, but now is still the time for negotiations. ..."