Jezebel is part of the original Gawker Media (now “Go Media”) network, and is a glorified blog. Hardly a “news outlet”.
It’s also not even scab behavior. Scabs are people who take shifts at places where unions are on strike. This is a store with no union, so he’s not doing union work. It’s maybe anti-union, but it’s not scab-y.
And while I’m generally pro-union, my experience with unions is they are very, very against non-union members doing union work. So if Ed Sheeran wanted to pick up a shift at a Starbucks for a promo, I can see why he might have had to pick a non-union location. I’d be curious to find out if he asked or what his agents discussed. Doesn’t seem likely to me that Sheeran himself said “I want to do manual labor for several hours, make sure it’s at a union-busting location.”