why does Export Channel Batch mix single channels into ster?

HI… I was just wondering why Cubase 8.5 (same behavior as before), that whenI use channel Batch export tracks that it seems to always bounce single channels into stereo tracks?

Unless OFC I select “mono downmix” and then it seems that Cubase first mixes 2 channels (from 1) and then bounces that to mono?

I don’t think that is right, is that right?