"We did not examine systemic claims of bias, such as the tenure schedule that imposes inflexible time-career paths or structural societal norms that burden women with greater responsibilities outside of their academic jobs or that penalize women for negotiating forcefully for wage increases or seeking outside offers. Other scholars have identified a myriad of such systemic barriers. "
part is important, it specifically is saying there has been a lot of work showing systemic barriers but they are not researching that part. This isn't a critique of their research but of the summary articles headline and what some people seem to be taking away from that headline. Even in the HigherEd piece it says there are concerns and this research is to help identify where there has been progress and where we need to focus.