Did you private message the profile manager? They may not even be aware of the seriousness of uploading it - stranger things have happened.
I would send them a warm and private message advising them the image is owned by another party and so a breach of copyright. No-one wants to get in trouble or cause headaches for wikitree, so I'm sure it will get removed once you have communicated with the profile manager.
ETA: I private messaged the uploader, an active wikitreer so I'm confident he will get my message, and I've uploaded a crest he can use for free on his wonderful Robinson One Name Study page.