I really dislike the reaction to research where people say, "of course".
Firstly, unexpected results happen all the time. We don't know until we check!
Secondly, a study like this in particular is important because we didn't know that children's lungs would get better necessarily, or how quickly. It wouldn't have surprised me to find that there was lifelong damage.
Thirdly, research that confirms what we know or expect is very important. Reproduction is at the heart of science! One study means little.


