Foxholer
Blackballed
Failing the breath test does not mean they were guilty of a drink driving offence. It means that there is sufficient evidence to arrest the person to take a more accurate sample (blood or urine) to ascertain the true level of alcohol in their system.
The case could be dropped for different reasons eg. incorrect procedures involving the taking of the samples (time of sampling for example), incorrect procedure behind the arrest.
If you refer back to the link in the OP, then you will see that it's only after the person has been charged (following a positive 2nd sample/Blood test) that they become candidates for the list.
It is already general Police policy to release names to the Press where a person is charged - something I have significant (innocent until proven guilty) qualms about, but not so much in this case (where a conviction is almost guaranteed).
There are also other offences where publishing names of accused actually prompts other victims, who would otherwise remain silent, to come forth/provide evidence! Of course, there are dangers in this policy also! The show-biz sex cases have thrown up examples of both!