Where do you live? What are the laws around recording another person without their consent. Note that usually audio recording in public is more restrictive than video in public, so assuming he didn't mute the audio of the clip, you probably have a case there.
As for the suggestion about DMCA takedowns, that depends on of the information you shared could be considered copyrightable since the recording copyright belongs to the person doing the recording. That's not common, so you could file a DMCA takedown, but I have a feeling it might not be legitimate. There might be other YouTube terms and conditions that they violated, though. Check the "Report" button for the options. I don't have an account anymore to look.
I mean that's standard practice. If a feature, product, or company develops a bad reputation, just rename it. If your market is large enough there will be enough people not paying attention to not realize it's the same product.