The general public forgets that old nodes are the vast majority of what's made in fabs.
Cars, most appliances, military, etc all run on old nodes. They're not running cutting edge stuff. Desktop PCs and gaming stuff is nothing compared to the reliable bulk orders that last years for a car line or a line of washing machines.
that's why the investment is 700 million. its an aging node but a lot of product included military hardware doesn't require more than 28.