I can't help but think that equipment designed such that it allows the wires to be crushed when reassembled suffers more from "design flaw" than "human error".
Not necessarily.
From an electronic design point of view, some cables are longer than they need to be so that parts can be removed without having to unplug/disconnect one thing from another.
Making a cable short enough to not become trapped in a reassembled casing, can mean having to disconnect it to remove another part of the circuit which may lead to other problems or puts tension on the wire which could lead to a break.
Much better to have a looser wire which allows greater accessibility and an SOP which involves making sure the wire isn't trapped when the device is manufactured.
Remember these beacons have a battery life of 10 years and once installed should need very little or no attention.