And after more searching, I did find a PDF on the site with the baggage allowance for tickets issued after January 26, 2015 (today), and another one for tickets issued up until May 6, 2014. Missing are tickets issued between those 2 dates, during which mine was issued.

Regardless, the PDF says that for flights between North America (excluding Canada) to arrival cities served by Alitalia (including Israel), Economy is allowed 2X23. So seemingly another potential reason that I should get 2 on the return