Yes, you are correct. I guess it's possible you could pop a "range" out of gear, but under load the lever doesn't move easily.Kubota's "HST" tractor transmission have gears in the range portion of the transmission which is located between the hydrostatic portion and the output to the axles. Moving the range selection lever engages the appropriate gears for the selected range. In between range positions no gears are engaged and the transmission is effectively in neutral with no braking from the engine or hydrostatic portion of the transmission.
Interesting how you are supposed to depress the clutch on a B-series or BX but larger HST tractors have no clutch and range change can be done without a clutch, so long as you ares stopped.