You may be correct, lets hope so.
Regarding your observations,
Points 1&2 are based on willingness to pay a months salary back to your employer. For me its never been bad enough to want to leave that quicky !
point 3, may be the very reason they are thinking of leaving. It's not much of a life without family and/or the chance to see them often.
point 4, It was cheap for the guys that left !! They did a runner, or in one case the company actually paid for everything! I know one fellow that is working his notice, I can only assume he's paying back the bond.
point 5, I have asked EK HR and was told no plans to take DEC's.... at the moment. maybe thats changed. Each to their own.
Might I also add that Im not seeking to leave just yet, Im in the camp thats relatively happy waiting for some of the promises to materialise.
rgds