I’m probably going to get down voted for this, but that doesn't sound like a bad deal. They’re giving up tax dollars that the region wouldn’t have received anyway without the project in exchange for a big (admittedly temporary) economic stimulus while the data center is built.
I live in a relatively small rust belt town that’s seen several data center projects recently, and while they have slightly increased the cost of electricity, they’re also employing a ton of people at well above market wages, plus bringing in out of town labor who are spending their checks at local businesses and paying taxes on those checks locally.
Make hay while the sun shines.