That is exactly it right there. Again as in the 90s we are down sizing and this is a cheap way to get rid of personal. The higher ups do not care because by the time the next big thing rolls around the soldiers that filled the the places of the ones that left will be up to speed (hopefully). They promote the lower ranks to replace the ones that got out and replace the lower ranks with new recruits everything continues as normal, except for the loss of experience it works perfectly. Then they will use words like, trimmed, smaller but more efficient, leaner but well trained, all those catch phrases that came out in the 90s will be back and up dated.
While they are pushing the Northern Angle as our next big mission (which is needed) other than getting the troops up there it is cheaper than most exercises (no need for AFVs or the fuel and maintenance cost that goes with them) LOSV courses are cheaper than AFV driver and gunners courses and it looks good in the press to the general public that we are doing more to protect our sovereignty.