Yeah, it's really strange that a planetary risk doesn't come to pass when society reacts swiftly and does what science recommends them to do (i.e. banning CFCs, which the world did in the Montreal treaty).
1: The part where we, at the time, were told that the hole would take hundreds of years to close: It didn't. (Pear Reviewed article from 1996: https://www.nap.edu/read/9042/chapter/1#6)
2: China is still producing those CFCs: https://www.bbc.com/news/science-environment-44738952
The fact that China is flaunting the rules the international community agreed on means what, exactly? The undeniable fact is the ozone hole did NOT continue to grow, because the majority of the world halted their use of CFCs. And wouldn't you know it, when we stopped using CFCs we stopped fucking up our ozone!
It proves the all thing was an exaggeration.