I do wonder how unpopular they are. I had noticed that all the online Scheme tutorials that used Racket were resetting the repl everytime, and resending everything to it, instead of the way I did it using vim-slime, so I looked up if it was possible to send an expr to DrRacket and found this:
<https://blog.racket-lang.org/2009/03/the-drscheme-repl-isnt-the-one-in-emacs.html>
(I was also under the impression that the Lisp Machine way of developing was also the Smalltalk way of developing, but maybe I am misunderstanding)