Mouseferatu
Hero
My concern is that if the hook is too distinctive, all of the members of that race will wind up feeling samey-samey. That's already too much of a problem (in my opinion) with the core races.
It's a balancing act, certainly. You have to be distinctive without being too restrictive. It can be tough.
That said, I personally prefer--if they have to err one way or the other--that they lean toward too much of both than not enough of either. We already have broad races, so I'd rather new ones be distinctive even if that does restrict them a bit.