If the walls are open, they shouldn’t. They should be using the minimum number of connections/joins because that’s always going to be a higher point of failure.

If the walls are open, they shouldn’t. They should be using the minimum number of connections/joins because that’s always going to be a higher point of failure. However, When you/they need to patch something and don’t want to open up the whole room/house, then that’s the correct use case for these devices.