I think K. Rool will be fine in the long run. But maybe there were some logistical/time issues with implementing K. Rool and the Kremlings, at least from what we can see so far, in the theme park.
A K. Rool person in a costume seems like it could be doable.
Also, there are probably other things we haven't seen yet. Remember, there's an Ellie the Elephant shrine for some reason.
But yeah, making the ship Tiki themed of all things is pretty boneheaded. If you think pirates, you think Kremlings or even Snowmads. I don't think people even think of the Tikis, period. But whatever.
As long as all park guests are tested for salmonella by Dr. Squitter at the entrance, I'm OK.