It seems like the cabin crew handled it very well. The passengers interviewed knew something happened but the cabin crew being calm and professional thankfully no one panicked (at least from what the article says).
I used to watch that show Air Crash Investigation/Mayday/Air Disasters (it's had several names) which, on one hand, has shown how resilient and safe planes can be even in emergency situations.
On the other hand, if I were on a plane and something was wrong, my anxiety would make me think of all the episodes that didn't have a good ending lol.
Glad everyone is safe.