Your description is vague for those that do not know what a hume or huyr are. However, given that you have said they are the most numerous of peoples seen in this world, this venerable one assumes you are speaking of mortals. Human mortals.
In this venerable one's world, in the mortal realm, humans are the only mortals that exist. It is normal for the mortal realm. In the immortal realms, immortals, demons, and gods exist. That is normal for the immortal realms.
This world, it seems to be normal for there to be more human mortals to be visibly present on the backs of the God-Beasts than any other races. So, too, for the settlements they have visited since this venerable one arrived. But as we have not seen the whole of this world, it cannot be assumed they are the most numerous in this world. Only what we have seen of it thus far.
text | yuezun
In this venerable one's world, in the mortal realm, humans are the only mortals that exist. It is normal for the mortal realm. In the immortal realms, immortals, demons, and gods exist. That is normal for the immortal realms.
This world, it seems to be normal for there to be more human mortals to be visibly present on the backs of the God-Beasts than any other races. So, too, for the settlements they have visited since this venerable one arrived. But as we have not seen the whole of this world, it cannot be assumed they are the most numerous in this world. Only what we have seen of it thus far.