Wow, PDX-LAX? It looks like DL will take over the LAX traffic. UA running again. As I have said, you put express only flights, people will eventually fly someone else. You put crj200, everyone will find a different option.
People aren't dumb and they know what aircraft they are on these days. This isn't 10 years ago.
Anyway, LAX will probably lose SEA next. Pretty sure of that.