it would suffice to update the pattern used by doctor to validate movefile.yml. Here lib/wordmove/assets/wordmove_schema_remote.yml and here lib/wordmove/assets/wordmove_schema_local.yml.
This way a user would be warned about the trailing slash in the vhost key.
Discussed in https://github.com/welaika/wordmove/discussions/644
As reasonated in https://github.com/welaika/wordmove/issues/641#issuecomment-1038317537: