Well, given that this means they wouldn't have taken Thrace and the Anatolian coastline, they probably wouldn't have spent the next few decades bleeding away international goodwill and utterly enraging the Turks.
So, you know, there might still be a Greek capital today, rather than the Italo-Turkish partition of their country after the Great Balkan War.
Two of my great-great uncles, and two great-great aunts were all Greek emigrants to the U.S. not long after that conflict ended. They used to tell all sorts of horror stories about the Turkish occupation when my mother was growing up in New Jersey.....
At least these days, though, Greece is doing surprisingly well as a self-governing satellite within the Italian orbit; ironically enough, by the way, the Italians and the Turks ended up fighting each other in the Global War, and the Ottomans got their asses kicked so badly that they never got back up again(Most of the former Ottoman Empire, including the former "Syriac Autonomous Region" has been a shithole ever since the Civil War ended in 1979, with the exception of the Anatolian Republic and a few other places. Smyrna, btw, sits in the south of the A.R. and is probably one of the most well-kept cities in the Near East outside Constantinople and Tehran; though they're kinda mediocre compared to Paris, Montreal, Buenos Aires and Tokyo). And of course, the Turkish nationalists blamed the Armenians and the Greeks for everything.