The report (in Swedish) can be downloaded from Enersize's web page https://enersize.com/rapporter/.
The fact that compressed air driven tools and machines are cost-effective and easy to maintain might also be the underlying reason why the whole compressed air system can be so neglected.
Electricians are experts on electricity. They know which cables to use in different environments. They also have to understand the dimensions of the cables to be used and which regulations to follow during an installation, related to cable channels, pipes, ducts and connectors.