> I'm not a maintainer. Your patch looks good to me. Today I notice it's
> possible to change the interactive form via Advising Functions, so I
> plan to put the following to my init file until the patch is applied.
>
> (define-advice edebug-eval-expression (:before (_expr) better-interactive-form)
>   "Fix the original interactive form."
>   (interactive (list (read--expression "Edebug Eval: "))))

Great! I'm attaching a more complete patch with a ChangeLog-style
message. If a maintainer doesn't pick it up after some days, I'll try
messaging emacs-devel.