Getting meson to error out if plugin not built

In the README, it says:

The plugin will be automatically enabled if possible, but you can ensure that it is built by passing -Dgst-plugins-good:qt5=enabled to meson. This will cause Meson to error out if the plugin could not be enabled. This also works for all plugins in all GStreamer repositories.

I was trying to ensure the srtp plugin from gst-plugins-bad so I used the following meson command:

meson -Dgst-plugins-bad:srtp=enabled build/

However, even though I was missing the libsrtp2 dependency, meson finished successfully and just recorded in the log at the end that gst-plugins-bad was not built.

In order to get meson to error out, I had to use the following command:

meson -Dbad=enabled -Dgst-plugins-bad:srtp=enabled build/

I'm pretty new to meson and gst-build, but is this expected? If so, should the README be updated for how to ensure a plugin is built?