What's Up with the Ozone Layer?

I already suspected the worldwide industrial shutdown from last year was because maybe they were worried the Ozonelayer was going to collapse completely.
I wrote about it here on the forum, speculating about the reason for the industrial shutdown, after watching this video I'm almost sure that is what happened.
Now they say it 'healed', ozone moved from the equator toward the pole closing the hole, but that means on average globally the Ozonelayer has gone even thinner.