Why is this concerning? Note, it seems to me like their reference to "ubermensch" is to the Nietzschean definition [0] and not the Nazi remix.
The combination of symbols is not random either. For example: taken individually, I'm willing to believe we're talking about Kantian Weltanschauung, Nietzschean Übermenschen, Nordic runes, medieval wolfsangel, Roman salute, or east-Asian swastika. But if I notice several at once, I will become quite suspicious.
If I saw this on my dinner table one morning I'd assume someone committed suicide.