This is likely true, there are several things you probably need to do to make this work smoothly. As far as I know, there is no "hot swapping" and you won't end up with two different profiles on your drone that can automatically link up to 2 different remotes (wish it were that easy).
I was under the impression that the OP was asking if it is worthwhile to own two different controllers since some people believe a drone is tied to a single controller and that's it. I can say regardless of the process, DJI never makes it easy to switch things up. There will always be some inconsistencies in the process which is why so many people have their confusion about the process. For some drones, it seems to work easy and straightforward and the new controller finds the drone and away you fly. Then the next time, it seems to "forget" and you have to press/hold the power buttons.
Ultimately if you want to own 2 different controller so you can use them from different purposes (one for everyday and one for Litchi), I think you are ok to own both and you can carry them both with you without worry about if you can choose which one you would like to use at any given time in the field. Just be prepared to follow the instructions and just know that you cannot connect up both at the same time. As far as the flyaway is concerned, it's such a pain to keep re-binding but this is no limit on how many times you can do this. Still, I think you have 5 flights to fly if you choose not to act right away.
Yes you are correct. When I switch from the
Mini 3 Pro RC Pro remote to the
Goggles Integra, the
goggles told me I was using an unbound device. So I went thru the binding process. Then when I switched back to RC Pro and *eventually* it told me I need to [re]bind the
smart controller. If it means anything, I'm not asked to re-pair when I switch back and forth between RC and
Goggles....it's "knows." Anyway, this is what DJI says about bind/unbind:
After unboxing your new product, it is important to promptly bind it to your DJI account. Failure to do so will result in your inability to produce a DJI Care Aircraft Flyaway Report in case of a flyaway incident. To bind your aircraft and remote controller, or to perform an unbinding operation...
support.dji.com