Non-PRO English to Spanish Social Sciences Education / Pedagogy social studies/history

From a text about U.S. intervention in Latin America:

"In retrospect, was it wise for the U.S. to get involved in the affairs of these countries?"

I had put "Retrospectivamente, ¿fue prudente para Estados Unidos involucrarse en los asuntos de estos países?" but my proofreader changed the first part to "Mirando hacia atrás en el tiempo,..."--any idea why this was changed and was the change necessary or an improvement in your opinion? I appreciate your thoughts.