I started the process and on the first check, it told me this nonsense: "Inter is a fantastic, legible font, but it feels very neutral and clean. Instead, we want to find something with a bit more personality."

The author asked me chosing something legible, I can test that and find the best one asking several users what font was more legible, but if the author tells me that I am wrong because I will want something with "more personality" it ruins the science of fonts.

To be honest this is just a design taste tutorial.