Tikamoon plains is the only map not to have a tier 1 non-bird species. It is also the only map not to have a hare species.
This is why I believe Tikamoon plains will be more complete with the addition of the scrub hare.
While rabbits/hares may not be the most exciting animals to hunt, they add variety for those who enjoy hunting small game and contribute to the immersion of being in nature.
Also, adding the scrub hare to Tikamoon will make things a little easier for our honey badgers, which I imagine are tired of having helmeted guineafowl as their only meat option. Lions and hyenas have plenty of antelope to snack on, so it would only be fair if honey badgers had another prey animal.