I know this is the off topic bit and I was in two minds as to create a separate threat but....
There is no justification to think that ATCOs would be the only ones in court should an accident arise. Engineers and bosses can be charged as well, because they are the ones that produce and sign off safety cases etc.
How many ATCOs have been charged in UK for safety offences?
Engineers and Management have been charged in other industries (e.g. Rail). there is no reason to think they are exempt just in ATC business