The employers want their team of employees to get the job done properly for a fair days pay.

This decision means nothing. Only that no present dispute is deemed to exist and they refuse to deal with it beyond that since it is in the courts. It shows weakness on the tribunals part and serves neither employees or employers effectively since the message is that either side can behave as they wish whilst the can gets kicked down the road for a few months until nothing of consequence is done by the tribunal. The real losers are the general public in most cases.
The decision of consequence here will come from the courts.

But that should be the absolute last resort tactic once negotiations completely fail and must be carried out in accordance with the CBA.

If not then the Unions should have no qualms with the other side (i.e. employers) who breach the agreed upon CBA(s).

It has to work both ways or what is the point of a CBA?

You can’t expect the employers to abide by the signed and CBAs while at the same time having Unions believe they have every right to breach the agreement with no consequence.

Employers need employees and employees need employers. They have to work together as per the agreements or we get nowhere and the public suffer the most.