Evil Arcane Worker problems

Just got the new 2.0.4 patch and immediately tried out the new Evil Arcane worker theme, but noticed a few issues with it:

1. The worker theme cannot be selected separately from its dungeon theme - the only way to use it is to choose the Evil Arcane dungeon theme and then select "same as theme" for the worker. I've checked this with scenarios and in the map editor.
2. It makes sounds like an imp rather than a dwarf.