I wouldn't say so. The 'Learning by mistakes' step in the demo shows that the AI can work through these issues, presumably this can be done more efficiently than a human.
There's an error showing on the page [an error occurred while processing this directive] which I'm pretty sure I've seen before with WordPress but I'm guessing it's not using that.
But now I'm curious does anyone know what stack or cms they're using? All built and managed in house?