Rather than being outraged at the headline, what are the actual details? Why were they able to pay no taxes? Was it due to carried losses or something like that? Anyone mad at a company for not pay taxes is misdirecting their anger. Companies follow the law. If you don't like the law elect different politicians. Don't get mad at companies that follow the law.
I think people are outraged because the laws themselves are unfair and special tax breaks are doled out.
> If you don't like the law elect different politicians.
In our form of government it's possible for a presidential candidate with fewer total votes to win (Trump & Bush). If we had a popular vote for President this argument would make more sense.
Also, on a ballot we're often given 2 (maybe 3) choices for representation. These representatives often need to raise money and they raise money from the companies and wealthy individuals that benefit from the tax breaks and exemptions.
Unfortunately, it's a cycle of influence (aka - light bribery) that keeps these unequal laws going.
A flat tax without exemptions seems like the fair and simple way to address this, but there's so much money to be made by making taxes complicated that it's hard to imagine well funded politicians actually passing something like that.