Are German theaters safe places to work?

Allegations based on a survey by ARD show that 90% of those who responded have experiences abuse of power in German theaters. But is the survey reliable — and have codes of conduct made a difference?

source https://www.dw.com/en/are-german-theaters-safe-places-to-work/a-66188293?maca=en-rss-en-ger-1023-rdf