Yes, it increases the state-level and national uncertainty intervals (Andrew Gelman has talked about this several times on his blog), which improves Trump's odds.
Sure, but that's not necessarily wrong. Any decision in the model will change Trump's odds in one way or another. The question is if it makes it closer to the (unknowable) real odds.
Just because intuition says it should be longer odds for Trump doesn't mean that's right.
Just because intuition says it should be longer odds for Trump doesn't mean that's right.