I don't think Hillary deserved four pinocchios. I would have given her 2, or using politifact's model "half-true".
Comey's testimony Thursday actually did give compelling evidence to the claim that Hillary was being honest. These were
1. That there was no strong evidence Hillary knew she was sending or receiving classified info.
2. That based on classification rules which state that the a classified document must be labeled "classified" in the header, it was reasonable for Hillary to infer the documents weren't classified.
This is what I think Hillary was alluding to when she said that Comey showed that her statements were "truthful"..
I think the problem though is the word truthful. Truthful implies not just that what you are saying you believe to be true, but is also actually true. But even while Hillary may have been honest in what she said, what she said turned out not to actually be correct.
If Hillary had said that Comey showed she was being honest, it wouldn't have been a problem. But truthful conveys something different.
So as I said it's a half truth. Hillary wasn't lying, at least there's no real strong evidence to suggest she was. So she totally has a right to say she was being honest. But just because she was being honest doesn't mean that everything she was saying was true.
I think the Washington Post screwed up covering her statement though, and was a bit unfair to Hillary.