In short it means that the Council are going to wriggle and squirm and temper their legal duties as an employer by pleading poverty and the fire authority are going to let them continue by a series of protocols such as not issuing enforcement notices on council properties.
Been there done that so many times. The most graphic example was when social services were responsible for the Registered Homes Act 1984 and most brigades, as advisors to the social services, had to bow and scrape to the politicians and take flack if they dared to suggest improvements needed to be made. This led to chronic dual standards so bad that most council run homes had to be closed when the Care Standards Act came along.
It also happened in schools, and fire stations.