One benefit can be more interactive development, or interaction with the embedded device. I think various forths were used on embedded systems also because of t

One benefit can be more interactive development, or interaction with the embedded device. I think various forths were used on embedded systems also because of that. And some projects just don't require much speed and benefit from a higher level lanuage. Reading a couple of sensors over I2C every few seconds, doing some "business logic" and serving data via a http server over wifi can be simpler to achieve in higher level language and the device will be idle for the most of the time anyway. Micropython is a nice solution in that niche. But for some projects you do want a lower level language if not for else maybe for lower battery consumption.