I've taken all of AOPA's courses, and they are usually useful and at
least enjoyable. the obviously put quite a lot of work into them.

I think you might have misinterpreted the intro comment:
"Most pilots don't realize that low ceilings and restricted visibilites
are aviation's most deadly killers.

I dont't take that to mean that most pilots don't realize that these
conditions are killers. I took that to mean that most pilots wouldn't
think that these conditions are so statistically much higher than other
causes.

Either way it isn't good though. Sure hope I don't show up on the list
someday...