Eh, these additions are similar to Dumbo or the Mad Tea Party, which have always been welcome. DHS and DAK could both use more flat rides to help fill up your day without an E Ticket line.
Dumbo and the teacups were built in 1955 really, the nostalgia helps them. I'm not 100% flat rides are still the way to go. A family ride doesn't have to be a flat ride.