It went unnoticed at the time that the plugin was not providing any source code and was only providing binaries for download. Going forward, we will be requiring that all plugins that we link to have an OSI Approved Open Source License and that some level of due diligence has been done to verify that the plugin is safe for users.
Unfortunate that this happened, but at least they are forcing more transparency to try to minimize the ability to hide behind opaque code.