they went down, what does that prove or how is it even relevant. Swansea are struggling. its obvious that the reason they struggle is playing in Europe. Sunderland will be in the Europa next season, they may go down this season.
All it proves is that you dont need money to win a cup. You can however be lucky. Wengers teams are neither good enough or lucky enough. Another 10 years from now, it will not have changed. IMO