Question about something my counselor mentioned

Question about something my counselor mentioned

I went to school in the Dominican Republic for freshman through junior year, but I moved back with my mom and transferred to a competitive public high school in Southern California for my senior year. My counselor recently told my parents that Dartmouth and Columbia contacted her about more information regarding the schools that I went to in the DR. She said it was a good sign, but I feel like it is pretty much expected considering how I explained the difficulties of the situation in my application. Is this a good sign or does it not really mean anything at all?