well, a BB might not reach... And if it doesn't put a big hole in it, balloons can stay aloft for a good moment. But the why question, yeah, spot on target with that one. It feels fishy. And, I don't think people realize just how anxious we all are with the state of affairs, and so we're all bit more edgy. Spy balloons pushes our buttons. Even the military has buttons.
I have not seen the new show. I don't know if i have a friend that has it, but I will try and find it.