Please explain this adafruit image for connecting a DS1307 RTC https://learn.adafruit.com/assets/3813

I understand that analog 4 and 5 are SDA/SLC, isn't the picture also showing 5v and GND being plugged into two analog pins? Does that work?

I have it wired up to the actual 5v and GND, but it would be convieniet to be able to stack the RTC like they show in the picture
It's written in the tutorial


  If you set analog pin 3 (digital 17) to an OUTPUT and HIGH and analog pin 2 (digital 16) to an OUTPUT and LOW you can power the RTC directly from the pins!