Technically, ToT is trackless as well. And two of the trackless rides are hybrid trackless/drop tower rides.
DHS's atrraction lineup has a lot of duplication:
- Two launched coasters
- Two interactive game rides
- Three motion base simulators
- Three trackless dark rides
- Two 3D attractions
- Two freefall/trackless dark ride hybrids
The two major rides that were removed also had a major element in common: live spielers.
For a park whose theme is "anything goes as long as it is related to the entertainment industry, movies, TV shows, or music" it is surprising how much ride system convergence there is.