According to Steve Nekias :
In Canada, you are required to pigtail hot, neutral, and ground in any
case where there is another receptacle 'downstream.' The ground wire
must be attached to the box before being pigtailed.

Strictly speaking last CEC code revision I checked, you always pigtail
grounds, neutrals are pigtailed in multi-wire branches only, and
hots do not need to be pigtailed.

Not having ground connected when you remove a device is quite
dangerous

Not having neutral connected with you remove a device isn't
particularly dangerous but it's _extremely_ dangerous with a
multi-wire branch circuit.

Not having hot connected when you remove a device is not a safety
hazard.

Is this a recent CEC change? Or are you going by Knight?

Last time I read Knight, Knight said the above, but in addition
that _always_ pigtailing neutrals was "better", even if not
required in a specific instance.
--
Chris Lewis, Una confibula non set est
It's not just anyone who gets a Starship Cruiser class named after them.