How did Angela Merkel's refugee policies change between 2015-2016?

In 2015, there was this famous interview involving Angela Merkel and a young refugee girl (?) where girl requests at better policies/rights (?) for refugees to Merkel, and Merkel gives a controversial reply to in which she states that people would be sent back, Germany doesn't enough capacity etc.

Now, what is interesting is, the very next year , 2016, she turns to a more pro-refugee stance and as an example of that in the public , we can see the famous "wir schaffen das" speech.

This also shows in the statistics as we can see the Refugee status declaration has been steadily increasing ever since 2015.

My question is, why did Merkel, and maybe Germany as a whole, turn from a stance where intake of Refugee is seen as undoable to one where it is seen as doable?

Excuse me if there is misinformation in my post. I am pretty new to understanding how German politics works