OP has never slaughtered and plucked a chicken so he doesn't know that's not abnormal for a chicken. That's how chickens be, that's just how it do. Whatever mechanism (or employee) they have doing this, didn't do a good job this time.

Either pluck the feathers with tweezers, or just rip off the skin and eat the chicken without skin. I know the skin is delicious, but hey, better than binning the whole thing, right? By the way, if the fat is yellow, and/or the meat is dark, that's also normal for a full-on farm chicken. IMO it tastes better.