I like that idea it's free lol. As for Mitz's suggestion there are just a few things about that O2 Sensor:
1. If O2 was a maintenance item like a spark plug, it would have been mentioned in Factory Service Schedule. There is no such mention of that in Schedule.
2. The source provided are mostly off random websites. Not sure about their credibility.
3. Praying is free so I will take that lol. (in this case it's fine a fine approach as vehicle is running fine).