This is a good argument in favour of allowing 802.11 remote control - so far as Im aware the same equipment is legal to use on both sides of the pond and in other countries.

Personally I like the idea of removable links; I know when Ive got the link in my back pocket that my robot is safe(r) to work on. I can see advantages to something that can be deactivated by a tool on a long pole - a hook on a stick could work as well on removable links, but as Alan says the 175A connectors often require quite a bit of force to remove.