I'm not so sure about the statement of not having the presence of mind to include pitot heat when under pressure. That could apply to so many aspects of flying, hence the reason we have FREDA checks and the like.
During my IMC training I was taught to include Pitot Heat in my FREDA checks. I'd include Ice at the end of the check, checking the wings for ice, then checking the temperature and if necessary putting the pitot heat on.