In its already isolated situation, Israel certainly doesn't want to alienate even more nations. Not if any reason is left in that country. The best way to deal with this is organizing the best possible legal defense for "Brodsky", and let him plead guilty on minor charges. Keep the case out of the headlines as much as possible, and let the guy have a break of 18 months or so. The last thing Israel wants now is a big media spectacle and a wide ranging investigation of Mossad's operations.
Palestinian Red Crescent: 568 Palestinians wounded in W. Bank and E. Jerusalem on Saturday (Haaretz)
from the article: Germany may have intentionally leaked alleged Mossad man's arrest