I'd suggest that looking at all of the inspirations for these aliens is instructive – I'd hope that it encourages people to go and read about the Hani, about the Kzinti, see where the authors of Traveller where coming from and make their games better through a deeper understanding of the Urtext (while not taking it too literally, of course).
For me, RPGs like Traveller are a chance to play in the settings and stories I am familiar with from my science fiction reading, that includes literally playing in some licensed setting all the way to playing in the Travellerverse, which is a particular cake baked with lots of these ingredients.
I just don't see the sense in trying to insist that this is an isolated thing, in an isolated pocket, that references nothing else. That seems to me to cut Traveller loose from the rich inheritance of source materials it synthesises and simulates.