Does the Bob Ross method of painting really work?

Bob Ross has a TV show that teaches how to paint various nature scenes, and landscapes. In 30 minutes, he produces something that is so realistic I’m pretty sure I can see animals walking in the background and hear birds chirping!
The show has been on for decades so he’s not using Photoshop. He just adds a “happy little tree” there or a “mellow cloud” here by quickly swishing his brush around “anyway you like. Have fun with it.”
If you are not familiar with the show, here is a typical episode . Watch it for a few minutes and skip to the end to see his result. Incredible!!!
Painters, have any of you tried this? Did your painting look like his?
And what’s a “happy little tree” anyway?