I'd never heard the term "catenaccio" before, but, after looking it up, I suppose I agree with your assessment. Barcelona definitely plasy a defensive-minded possession game. It's undeniably effective, of course, but not much fun to watch. Some of their players are individually amazing, however. You complain about Iniesta (rightly so, I'm sure) but he actually impresses me more than Messi. Iniesta is an absolute wizard.