2. The water leak isn't actually in the apartment if we're keeping this accurate to domains. Maybe the only phone the plumber will listen to is in the apartment.
3. As someone else already said, the judge is handing over the keys to the entire building.
How would it be ridiculous? A water leak in your flat is causing damage to the flat below yours, it's your duty to address this. If you do not address this, someone will in fact go to court and take control of your flat.
This is something that happens all the time in cases where compliance with specific performance orders seems unlikely.