If you want substitute in 'joy' for 'sales'. Its a figure of speech. What is the joys pitch of this language? It looks like a beginner friendly version of Java.
Im all for the idea of optimising for developers fun and joy but im not picking up the sales pitch either
It doesn't appear to have been submitted by the language writer and the website itself doesn't say it exists to bring you joy. It says "may you experience the joy of programming." Whoever wrote that is seemingly trying to be nice and say something similar to when a person on the street wishes you a good day. They're not trying to say you should be having a good day because their very existence is good for you.
This is a hobby language that someone made in his spare time and he gave it a website to share it. I don't see a sales pitch at all. It's more like someone sharing pictures of a hand-carved pieced of furniture they made themselves. The point isn't to say everyone else should be using it and it's better than other furniture. It's just hey, I made this, take a look if you're interested.
I think for many people, there’s an increasing feeling of dread that comes from using “modern” tools. There’s a heaviness to them that is difficult to put into words. And I think anyone who shares this sentiment feels joy when a tool feels light and airy and totally under their control.
Everything you do and want people to use requires a conversion about features and benefits. This is no different. While there may be no money exchanged here, you need to sell me on why this is any than any other language. Looks like the same overlogic mess as most of the others.
There is an emphasis on 'joy', it can be just about having fun.