The POINT of this is that the cans DO change the taste of the beer, and that's because of the plastic (epoxy, actually) BPA liners breaking down into the beer due to its relative acidity. Some people are more sensitive to that subtle taste shift than others, but it's defeinitely a thing.
And that NPR link referring to "government studies" is talking about US studies. Japan did extensive studies and concluded that it is a thing, it is harmful, and they changed the legal limits to reduce BPA exposure. Europe also reduced the BPA limit to a temporary safe level years ago that will be revisited and made permanent at the existing lower level or even lower in 2020.
I mean, sheesh, I'm not saying this is what pushed Franchi out of Stern, but maybe it was? ( <---back on topic)