Unfortunately this phrase can also be used to show surprise from what I found. Don't get me wrong, I don't care for Ilhan but phrases like this can have more than one meaning.
While there is no exact definition or translation in English, the term Subhanallah—also known as Subhan Allah—can be translated to mean, among other things, both "God is perfect" and "Glory to God." It is often used when praising God or exclaiming in awe at His attributes, bounties, or creation. It can also be used as a phrase of simple exclamation—for example, "Wow!" By saying "Subhanallah," Muslims glorify Allah above any imperfection or deficiency; they declare his transcendence.
Unfortunately this phrase can also be used to show surprise from what I found. Don't get me wrong, I don't care for Ilhan but phrases like this can have more than one meaning.
While there is no exact definition or translation in English, the term Subhanallah—also known as Subhan Allah—can be translated to mean, among other things, both "God is perfect" and "Glory to God." It is often used when praising God or exclaiming in awe at His attributes, bounties, or creation. It can also be used as a phrase of simple exclamation—for example, "Wow!" By saying "Subhanallah," Muslims glorify Allah above any imperfection or deficiency; they declare his transcendence.
Sauce: https://www.learnreligions.com/islamic-phrases-subhanallah-2004290 article was written 11 JAN 19
Don't get me wrong, I think she was celebrating- but she chose what she said carefully for a reason.