The FCO has responsibility for the evacuation of Britsh nationals - a NEO is only used when (taking the wording from the old military task 4.2)
‘In cases where civil contingency plans prove insufficient, defence capabilities held for other purposes may be used to evacuate United Kingdom entitled personnel from countries where their lives may be at risk’
So step one is to evacuate individuals using civil means - hence the use of charter aircraft in Egypt. Only when civil options cannot be used will the military be used. As are Armed Forces are currently quite busy elsewhere, it is in the military's best interest to ensure that the FCO's plans are as robust as they can be in order to minimize any military involvement.
So in answer to the OP's question - yes they are; however, they remain the last (rather than the first) option.
Full details are available on the internet (that google thing really is clever) published by the MOD in the
UK's Joint Warfare Publication 3-51 Non-combatant Evacuation
Operations.