You are correct, Forth is not a institutional tool, more of a individual choice. IMO, one that allows you to prototype and debug interactively as you write your code and has been like that since the beginning.

It allows you to train yourself to have a complete control and command of your code making for tighter, simpler solutions for complex problems ( In my personal experience and comments for those that have been introduced to FORTH.)

If you consider that Embedded is a highly constrained resourced environment, then FORTH is a fantastic choice. Now step back, consider that statement once more, and you could be onto something even greater, as there is lots of resource waste-gates on modern OS and Computers. Now that Power is becoming a greater constrain resource, there might be an opportunity for someone to build something great in forth.

BTW the biggest back en used case is the bitcoint smart contract which is based on FORTH.

As you can see, and in full agreement in your statement, FORTH is a not a job magnet, IMO, you get better at programing understanding FORTH.

See Bret Victors talk, https://youtu.be/PUv66718DII you most of that already @ Forth ...! :;

Try it, you'll never go back! :)