Feather Boa you are spot on.
Firstly the only crime they committed was saying they would not work on a guaranteed day off when asked not ordered.
There is no rule in any KA manual that says you must work in this situation, unlike CX.
This decision has come from Board level to try and put the frighteners on the troops. It appears they have absolutely no idea how to deal with Contract Compliance other than to follow the lead of CX. It is criminal and insane for any management to allow things to deteriorate to this level and I believe they have no idea what the repercussions of their rash actions will be.