In all three cases, the difference between Hillary and Trump was less than what the 3rd party candidates got and what Jill Stein alone got. Given what I've said before, and what happened in 2000 in FL, trying to convince people of actually voting for their 2nd preference (Hillary) or vote trading in such states makes almost as much sense as blaming the Clinton campaign itself (definitely deserves the most blame), Russia, and any number of other reasons why Hillary lost.
It's a part of the puzzle, again, given that this is the 2nd time this happened.