I agree, however, unfortunately the RRV canceling still makes the feature unusable for me and atleast a few others I play with. As whenever we have an RRV on an alliance call (almost always) we can't use auto EMS standdown for our own missions, as it'll pull the RRVs from the alliance missions too.
Maybe something to leave for a bit then reapproach with a 'Thanks for fixing it, but could we have a small tweak?' in a few weeks/months or something?
So the easiest way around this is to send something other than a RRV or Ambulance.
The main issue was the game would cancel the following units.(PRV,SRV,Welfare,Ambulance Control Unit, CBRN unit, OTL and Ambulance Officer) the remaining such as RRVs, Ambulances and GPs would leave however would not be a loss as these did not contribute to the units required to complete the mission unlike the ones stated