"You can't tell a difference between a burka and a niqab!"
Neither can I. It's not too high on my list of "need to know" items.
I also cannot explain the difference between Sunni and Shi'ite Muslims (I only know that they cannot stand each other), I don't know why Jewish men wear skull caps (or what the correct name for one is), I don't know why Easter is a movable feast and I don't know why there has never been a female Pope (perhaps all the world's 1.2bn Catholics should have some "diversity" training).
I would suggest none of this ignorance is a measure of my intelligence. It's simply that I have no interest whatsoever in any religion or their habits and manifestations. As a result, I don't want to know why some women feel the need to roam around wearing a garment that just provides a slot for their eyes (though I understand it is to prevent me being overcome with lust should I see any of their bare skin). No amount of "diversity training" will encourage me to take an interest in such nonsense, nor will it dissuade me from referring to it as such. What I'd really like is for the women concerned to receive some training themselves. I'd like them to be taught that many people find their appearance ridiculous (whether they like it or not) and some find it offensive. I'd like them also to understand that religions (of all denominations) are highly likely to be ridiculed here in the UK and followers just have to put up with it.