All speculation here but maybe she did Stalk them to another place and that is why she resigned her position because she was disrupting another places business who was willing to serve Sanders’ friends.
In 2017, there were over 13,000 Starbucks in the U.S. One-hundred and fifty is just a drop in the bucket. And the stores they’re closing? Underperforming stores generally in urban areas. Starbucks isn’t hurting. Not one bit.