It means there’s one less satellite...
It means one easily tracked satellite has been replaced by thousands of random and untrackable bits of satellite shrapnel most of which will eventually fall harmlessly to earth.
The rest? Who knows?
Some of them will hit other satellites generating even more shrapnel. Some of it will have been blasted into higher orbits beyond residual atmospheric drag and will be 'permanently' in orbit.
'Permanently' meaning tens or hundreds of thousands of years before they clear orbit.