Yes, or course Ireland and Apple are going to state there that everything was above-board, as they both benefit from the status quo. (In Ireland’s case, its not about the money, but their attractiveness as a tax haven to big off-shore businesses). Your position seems to hinge on your belief that both Apple and Ireland are telling the truth, when they both have motive not to.
As for the US tax avoidance situation, I realise it is legal (and I did state that originally) and that other companies are doing it. However, I disagree that there is “nothing wrong with that”. It is morally wrong, and means that other companies (and individual tax-payers for that matter) are carrying an unfair tax burden. Yes, Apple will have to pay sometime in the future, but that doesn’t help the hospitals and schools that need funding today does it?
The sooner global tax laws are reformed to deal with this, the better.