Originally Posted by MarcPHL

Great example a bag that is 1x35cm will not fit into a quart sized bag.
Assuming you meant 1x35mm (without measuring to verify a quart sized bag would accommodate--and again assuming that any of this makes sense--perhaps it's been determined that 50mm is the Critical Diameter®™. Constraining the size of the container solves the problem.

Now, I don't know how this prevents such scenarios as buying something airside which support Critical Diameter®™, or checking such a container with binary components that are known to dissolve a barrier on a predictable schedule, etc.