If I wrote software that choked on non-ASCII inputs for say a name, and then someone said, "Hey, that's a bug," cool, yes, fair. If someone said, "This is evidence of racial bias," I mean... I'd probably object. Even if there is some nugget of truth to the idea that there may be some implicit language bias which relates to race in there.
I think Dan does a decent job showing that there is some level of racial bias -- not on the level of "the model refuses to show asian people," but on a level of "the model conflates certain jobs with certain races," and that's fair. But I just found the lede of, "Why don't people admit there's a bug in AI" to be a little obtuse.