Packages which have been "replaced" in composer.json cause errors

[diamondavocado]

When running info:dependencies:show-removable I get the following error:

Please check the path you provided. Removable Modules report generator failed with error: Module name for composer name "magento/module-captcha" not found.

I presume this is because I have used "replace" in composer.json to replace that module with nothing (as a safer alternative to actually uninstalling/removing the module):

"replace": {
        "magento/module-dhl": "*",
        "magento/module-fedex": "*",
        "magento/module-marketplace": "*",
        "magento/module-multishipping": "*",
        "magento/module-captcha": "*"
}