The $2B isn't over 1 year...it's over several years or decades. In reality it would be a few dollars per year extra for 600K employees. Let's not get carried away.
EDIT: For comparison, 50k USD is approximately 65k CAD, which makes higher than the median starting salary for a mechanical/electrical engineer in Canada. I would be surprised if they are paying their lowest-paid employees that much.
And for a lot of families that is the difference between a staycation and Disneyland. Don’t underestimate how much an unexpected infusion of cash helps people that are near paycheck to paycheck.