There is nothing stopping someone from having COVID, being too early to test negative or feel symptoms, board a plane, land in NYC, head to a concert at MSG, spread COVID at MSG, board a train to NJ to stay for the night, and give it to the front desk people at the hotel, and then finally wake up the next morning feeling sick.
NYC is not operating as if the pandemic is still a practical consideration, and that’s a city with some of the strictest COVID regulations throughout the pandemic. At some point the policy has to reflect the reality on the ground because policy decisions are based more than just science and math.
The TSA guidance feels political because it doesn’t reflect the reality. Even if that isn’t the intention-that’s the effect.