They're not the only one
That looks more like an iron cross, not the old Indy logo.
I found that iron cross medal in my grandpas cupboard a few years ago. He got it from his dad. Not sure what to do with that. I don't wanna sell it to a stupid neo nazi.
Speaking of that specific Flip logo.
When I was 13 I had a grey shirt with that logo.
Underneath the logo it said: Hate Kill Destroy
Of course I didn't understood back then why that could maybe be a bit problematic, especially here in Germany.
But that was almost 20 years ago and I never got in any troubles because of that shirt. But some people gave me props for that.. Now I know why, oh well.