There's a difference between "Let's use Calibri to make our documents more readable" and "Let's go back to TNR becuase using Calibri is woke nonsense by Biden's guy". They could have used pretty much any other reason to switch back to TNR, but decided to make it a childish DEI/"woke" jab.
You can find evidence for both sides, because life is more complicated than that. Do you have 20/20 vision? Hi-def screen? High contrast? Floaters in your eyes? Cataracts? Are you tired? How is the text laid out? Line spacing?
You understand both justifications are actually made up? As there is no evidence Calibri has better readability, certainly it doesn't have anything to do with wokeism.