It wasn't a case that the government went begging for the companies to come here, they were already interested, but needed convincing as to the finer details. Burke and then Ahern jumped the gun and went in with a very low offer.
And that's the argument, not that there shouldn't have been incentives, just that the deal shouldn't have been so biased to the other side. That perhaps some greater consideration should have been given (than I can see) to the actual pay back period for the state.