I suppose that Starbucks could have just blamed it on the Tooth Fairy, and then fired her. However, even a social justice warrior know the Tooth Fairy is an imaginary character So Starbucks invented the next best thing, imaginary bias:
from Philly.com:

Johnson said managers will now receive training on “unconscious bias.”

“The circumstances surrounding the incident and the outcome in our store on Thursday were reprehensible. They were wrong,” Johnson said on GMA. “For that, I personally apologize to the two gentlemen that visited our store.”

Now on one hand Starbucks doesn’t claim the manager knew he was biased, or acted with biased intent. Yet the company fired him anyhow. I suspect that training to eliminate an unconscious bias will consisted fo social approved indoctrination. What say you?