I'd love to see journalists doing a better job of explaining the failures of the tax system rather than peddling pointless outrage, but I suppose that they too are following their incentives rationally; outrage gets more clicks.
Journalists already do try and explain the failures of the tax system. For example, check out this graphic: http://www.nytimes.com/interactive/2012/04/28/business/Doubl...
The tax code is complicated and boring and people would much rather read articles with outrage directed specifically at companies.
Should I say that you're silly for getting angry at journalists for following their incentives rationally?
That logic doesn't work because people do get mad at things they view as wrong even if they are currently legal (or were legal when they happened). In this case, people thing Apple has done wrong regardless of the legality of the action.