I feel like anyone who grew up in a region where duck, duck goose was a common game for children to play wouldn't be too confused about the name.
Not that being confused about the name or disliking it is a bad thing. But I like the name, and it's part of the reason I chose to start using DDG.
If they changed it to something more generic, I'd be less likely to keep using it because I'd feel less of a connection to the brand. If I'm going to use something that generic and corporate, then Binging sounds more fun than Ducking.
I do realize that potentially losing me as a user doesn't mean this would be a bad move for DDG overall.