I also thought about Dylan when I heard of this racket direction; and took another look at it; Open Dylan has tremendous documentation (a very enjoyable read.) The compiler has been updated relatively recently to use LLVM; the command line programs run fine on Linux; I ran it on WSL2 and it seemed to work well there; it is a very nice and interesting language.

I suspect luck, timing and fashion have a lot to do with language adoption; perhaps more than technical merit.