Yes, maybe. But it also works to make a smaller railroad seem bigger because it takes longer to do the switching.
Personally I hate the darn things, as they seem to be a carryover from old time model railroad layout planning. Every layout had to have one.
I belong to a club that used to have a bunch of them, but they were rarely switched because of the frustration they generated. It was fun to switch them the first time, but after that they always seemed like a lot of useless, contrived work. I think we're down to one remaining right now.
Whenever there is a new layout plan in MR, I always check to see if the owner managed to incorporate one of them. Sometimes you can find two or three. Most disappointing.
Oh, did I mention that I hate the things?