I thought that too, but...........
If you use a splitter and turn on both boxes at same time, the splitter will trip out and give you sweet fa on both boxes, until you fully disconnect it and reconnect it again (if you leave it too long you end up with burned out splitter(s), ask me how I know).
The goobay switch, doesn't trip out but some boxes keep power to the lnb even when in standby, so those boxes need to be on the slave side.
So what would your suggestion be if I wanted to use my ultimo 4k and my viark 4k box.
Which one would be the master and slave?
I know for sure they would not both be used at the same time but would like to protect myself in case my accident this happens.
Thanks