Blackout in Cancun?

So there was no electricity at the Nizuc on July 4 from around 23:17-23:52. It was pitch black outside, in our room, and the air conditioning stopped working. I didn’t check the room phones though, just assumed they didn’t work as well. A few people were walking outside waving their phone flashlights trying to get back to their rooms. I guess the rfid locks still work?

Is this a common occurrence? It was really scary to not know what was happening and how long it could’ve lasted for.