Which claim is she overselling? It reads like a fairly conservative and well argued call for the continued involvement of theoretical physicists and mathematic

Which claim is she overselling? It reads like a fairly conservative and well argued call for the continued involvement of theoretical physicists and mathematicians in the already very successful field of complex networks- and this is from one of the best researchers in the field. She is not claiming network science will take over and be at the heart of everything, but rather that network science has already had great success in widely different areas of science and as domain specialists become increasingly involved, it is important not to lose the focus on the theoretical underpinnings which can be shared across domains.