TSA Agents are in worse shape, they typically earn less than $40k a year so they really do live paycheck to paycheck.
Controllers earn much more, they typically earn on average $130k, there are not nearly enough of them (there is about a 2000 controller shortage) so they get overtime. Until now.
Controllers have to retire from the job at age 56 so they're rather young and have mortgages and truck notes to pay so they can't go very long without paychecks either.
They have reserves and military ready to pick up the slack. They just released the stats and so far attendance is only 2 percent lower than the same time last year and still within their guidelines for safety.