In the truest spirit of the forum they should be bagged unmercifully without a shred of evidence but...
I thought that the decision made at decision height was the responsibility of the pilot in command. If it's a VIS or cloud base issue then again that can only be made from the cockpit. It's why ATC no longer have the right to close an aerodrome for approaches. It's a different matter if it involved busting a cleared level.
How about we break with tradition and wait for the evidence...
...before bagging the crew?