Exactly right - as with other Obola initiatives, make it appear you’re doing something while actually doing nothing.
Further, this is a tacit admission that travelers can and do bring the disease here.
Now if they could just make the leap that the best way to prevent the spread outside of Africa is to keep people from getting on the planes in the first place is the only sane approach. Does it make any sense at all that we would put the other 200-300 passengers at risk for the 8 to 16 hour flight? If they’re exposed, then presumably travel on from these 5 gateways unimpeded, you’re literally risking the population of the country.