They must think people have the memory of a goldfish. They must know this was an embarrassment last time but they are trying to push it again.
The final paragraph which you can almost imagine them reading in that rapid, machine gun style they use when listing the side effects of drugs in television adverts:
In February the US shot down what it said was a Chinese surveillance balloon flying in its airspace. The fallout saw the collapse of attempts to repair the US-China relationship, with US secretary of state Antony Blinken cancelling a visit to Beijing. The US later said it had not collected intelligence.