Here's the catch, for me:
I've been offered $115 to change the middle segment of a three-segment trip (this segment being SEA-PDX).
It's offering me two different replacement itineraries.... but it won't show the itinerary details.
For all I know, I'd be accepting a 30 minute layover in either SEA or PDX, during Christmas travel weekend.
It the website can't be bothered to show the itinerary they're pushing me to, then I can't be bothered to help them out by accepting!