On one hand it’s hard to disagree with the statement “it should be clear what your product does in a single glance”. In fact there’s a whole meta that’s been developed around this, with well established common wisdom on how to structure your landing page to quickly frame value to prospective users, call them to action, etc.
On the other hand it’s kind of fun to stumble upon something and feel like you missed the beginning of the conversation, and to figure things out piece by piece based on context.
I was also confused when loading this website but it led me to trying the app and it was kind of fun.
Sometimes the most optimized, clearest path isn’t necessarily the preferable one.