The map is using SVO-1 and SVO-2 to mark public bus stops, not to refer to the two halves of the airport. You can see the designations continue at other bus stops around the field.

This makes sense because Terminal B used to be SVO-1 and Terminal F used to be SVO-2, before any of the additional terminals were built (ok, and even for awhile after C and E were built...)

There is an updated bus map here:

http://www.svo.aero/between-terminals/north/

Or in English:

http://www.svo.aero/en/between-terminals/north/

That doesn't use the SVO-1/2 terminology anymore.

Woody, the one thing that would worry me about this in your situation:

The pages refer to the shuttle leaving from Terminal B, not C, which would require leaving the secure zone and passing through immigration.