I remember that the “vst v2” components had to be deleted in order to comply with Steinbergs new copyrights. They want to get rid of vst v2 in order to push vst v3. You had to fill out a form to be able to contiune to use vst v2 legally until the end of 2017 if I remember well. So this opportunity is gone, but I guess if you publish a complete build of the Ctrlr plugin nobody would care. If you would sell it that probably could change things a bit.
