Its not exactly that but.
First off the clerics never go to their def except for a couple of times. Next they are way slower but thats not the important part. When ever a hearthlings becomes incapacitated I ask for them to be rescued quickly so they don’t die the first responders are my soldiers who pick the hearthling up but because their AI runs to the cleric (EVEN IF THEY ARE AT FULL HEALTH) and the rescue icon is removed off the hearthling. I try to rescue again and again but the soldiers pick them up then run to the cleric and drop them and their rescue icon. This has caused so many deaths. I don’t know if this is a feature or bug but it gets really annoying.