I think a lot of comments are getting caught up on the title and the introduction. There are some good comments sharing other experiences with programming education so I think that's worthwhile.

I read the author as saying "I like playing around with things. I didn't like playing around with 'kiddy' things when I was younger, so I made a simple playful programming language that's not 'kiddy'".

I read the page and thought it was a fun language. I'm not sure I could do a good job of using it to teach a class of young people, but I'm sure there are some out there who would get a kick out of it.