Maybe an oligarchy, but the oligarchy can change with time as I do not think any single individual controls more than a few percents of the total supply. That makes a big difference in my opinion.

Concerning the other point you raised, Hive is not perfect and there are many ways to improve it. The good thing is that developers are working on this, and things move.

And finally, I do not think that 1 shareable vote per user changes anything. It just scales everything down, no?