The rides, are a lot bigger and heavier, and I would guess that they have a positive plug/socket system for connection?
Our models are much lighter, and relying on contact between wheels and rail (especially on a 'dead-rail' system can be a problem. - People don't clean the track, wheels, or maintain the pickups.
You also need to know you have a proper BMS, and not just a protection board, on the pack.
I would guess there is a lot more money and brain-power, aimed at the commercial rides?
You still need to be able to switch the pickups off. - Unless you will never take a model to another track. - You don't know how your system would respond to power from another control-system, and there is a slim chance that putting your loco on a DCC system might interfere with control. Worse, it could cause the system to shutdown.
Hopefully, nothing would get back into the CS, and cause any problems.
PhilP.