Framer
I thought that if you held an ATPL you were always night current. that may have just been under a different part, not 121. That way, for the regionals who are mainly on the ground during darkness over the summer months with daylight savings etc, they don't have to go and do circuits to get current every March/April.
So far as I know you are correct. Don't see or hear of the any regionals getting night current and at least one of them would have to do it in the aircraft as there is no sim.