Hmm. So it's not so much continuity they lack as it is culture? I wouldn't worry too much about that, even though they may be primitive by human standards and not form superstitions like humans do the world of demihumans is still clearly full of etiquettes and customs, meaning eventually they will stabilise enough to leave history behind as well. Not hard to see why Hakaba would be upset, though, he's clearly getting emotionally attached to all his weird friends (Keekoo,Kushoo, Susuki, Mou, Mr.Mushroom and all the rest) and the realisation that the factions back home thar view them as "resources to be harvested" could just roll them up whenever they please has got to hit hard.