Just depends how much they care about their people leaving. There is no doubt that CEA is a significant 'stay-in' factor for some, or rather (as has already been mentioned) that its absence would be a significant push factor. Then again, with 70-80% of Officers at their 38/16 point now choosing the leave the Service, I suppose they see it as a given that we are leaving and why should they try and retain anyone that isn't staying for other reasons.
(Aside - Be interesting to see how many mid-late 30s RAF officers will turn down ACSC because they are unwilling to extend their options...)