Exactly - states competing on incentives obviously doesn't increase gross tax collection on a
national level, but the article makes much bolder claims that it doesn't help anywhere.
Specifically this claim:
"There is virtually no association between economic development incentives and any measure of economic performance."
The article states that the 1.3 billion dollar data center will get $39 million tax break up front on hardware, and another $190 million abatement over 20 years from the city. They will invest at a minimum $20 million into Waukee, a city of 20k people, and expect 50 permanent employees + ancillary services.
Waukee will see a construction boom, higher employment, and more tax revenue. The state will see a reduction in the data center decline + additional tax revenue.
Unless they were sure Apple had no other option but Iowa for this project, the state and community were better off making a deal than not.