Sure... but I could go either way. It might be good to be able to test with the current system and reign in a cargo setting that works with the findings. I mean, rails potentially bring us the capacity to build systems whereby cargo is ferried to a potential offloading beam that transfers items in or out of containers. The rails let us build complex multi-piece ships, but without proper capability to integrate those pieces, they may be missing huge opportunities.
I could also imagine a possible ability for ships to transfer rails if pushed onto another rail/ship. You pull up your ship to a docking clamp and your cargo section slides off to the station to be replaced and/or unloaded. It wouldn't even need to be a beam in that case. You'd just transfer a part of your ship and pick up a replacement like filling up your propane tank.