Even if it was a play on retard I think it's really none of your business what someone calls their thing.
The kneejerk response here to be "you have change its name" is so damn entitled.
Why? This doesn't logically follow to the author renaming their thing unless you think speech policing on the internet is some kind of valid passtime or has any weight on anything in the real world.
> meaning that every time it's shared a discussion like this one will take place
So it's a good PR move because the PC police can't figure out that just maybe every corner doesn't have a nazi around it and maybe it's just a play on bastard?
It's irrelevant what should or should not be, in this case. If you want to avoid people discussing potential controversy around the name you've chosen, then don't choose a name that has controversy potential (and if you do that by accident, graciously change it). I'm talking about outcomes here, not about what anyone might think should or shouldn't happen.