Chisinau is the only average where I included Slavic minorities (the version that you are seeing on the website has only ethnic Moldovans so far, but it will be updated to this). It's only normal for it to be like this, because it's an urban settlement.
Perhaps something like Ialoveni or Straseni, which are just on the outskirts of Chisinau are closer to the average.
Same goes for Balti. Being an urban settlement, perhaps the districts around it are more representative of the average there.

