1. It's telling because if Intel thought this was a good investment then they would have made it without the grants. The stock buybacks show they had the cash to do it recently.
2. Alternatives to giving grants: Tax credits, low interest loans, import duty, law, executive action, threaten anti-trust lawsuit, purchasing shares, leverage intelligence agencies, nationalize. The most straightforward way would be to extend the regulations around exporting critical technologies to make it unfeasible for new chips to be manufactured overseas. There's pros/cons for all choices.
What are the alternative incentives?