Is the Montrose crash "Deja Vu all over again"?

Back in the 80's and 90's we saw several crashes which featured pilots
from warm weather climes operating in cold weather areas who failed to
pay attention to the affects of freezing precipation on the airframes
they were flying.
ie
- Air Florida "Palm 90" departure from Washington Reagan National
- American Eagle ATR42 "Rosewood" crash
- several business jets at Aspen

Is this a "Brain Fart", complacency, or symptom of a training and
education problem?