I would be upset, but understand that one series of incidents doesn’t warrant the SecDef being fired during wartiem.
The reality is that Rumsfeld has a series of screw-ups that are amazing in their breadth.
In comments, Greg Blankenship made a point that some in the Pentagon are probably trying to get Rumsfeld with this scandal because of the way he has tried to remake the Pentagon as well as other turf battles. This may be true and I don’t doubt there are folks out there looking to make like difficult for him.
That said, he has run two wars and the Pentagon transformation in many ways that are simply not tolerable. If transformation is needed (and I think that is questionable right right now) then let someone capable do it.