Yeah. Roger Rabbit and Ladybug Boogie don't offer it either, but they require a child to sit on their own. So a 4 month old can't ride those either, but no swap. It's not perfect, but it's better than a lot of parks.
Yeah I was surprised by RR - I must have had my son at the time who was probably 15 months? It was super jerky and I had to have my arm there to make sure his head didn't bang into the bar. Never again!