I'd say yes, even though it has limited benefits.
In `guix repl`, you can see the load path with

--8<---------------cut here---------------start------------->8---
%load-path
--8<---------------cut here---------------end--------------->8---

The --load-path option would essentially be the same as appending the
path to the %load-path variable from the REPL.

-- 
Pierre Neidhardt
https://ambrevar.xyz/