Well, good news, the topic of getting rationality into academia is something I'm actually working on myself as an academic. For example, I just published an op-ed in one of the most premier higher education media channels on how I as a professor used rationality-informed strategies to deal with mental illness in the classroom. Earlier, I published some research informed by rationality concepts, such as agency.

As part of my broader project of promoting rationality widely, I'm also starting up a research project on debiasing the planning fallacy using rationality-informed strategies and on finding life goals using rationality strategies. I'm planning to publish research papers on these topics, naturally.

So I'm guessing some of the reasons why rationality is just beginning to enter mainstream academia is because of the very long cycle of conducting research and then publishing. Another set of reasons has to do with academics like myself taking time to figure out how to integrate rationality into their research fields.