She's happy he got a perfect clear, but this was a mission that was going to fail. He wasn't the first person to try it, multiple contractors had taken it on and all of them had failed miserably. Then he comes along and, not only does he clear it perfectly, he gets the bonus task as well. That alone would put him above most of the contractors there. Then on top of that he clears the 'hidden' stage and gets a perfect on that as well. A stage that was obviously way harder than the one that preceded it.
And all that on the first 'real' mission he's faced. The earlier being a tutorial of sorts to show how things work. Of course she's going to want info on him. Not just so they know everything they possibly can on the equivalent of Beckham when he was 16, but to make sure that he really is that new because he obviously does not act it. There are chances of him having deceived them in some way so they need to check it.