I've seen this "blaming" many times in my mother (ESFJ), and I have personal experience with it too.
I remember how my mother have worried to death about someone, seriously worrying, has been placed in a terible emotional state because of someone else, and it is this frustration (which is first shown as a relief for that person being safe), and then all the negative emotions are directed at that person when one knows they are going to be fine. It seems to be a blame game, because that other person is "responsible" for the worry they have caused.
I've done this too when I have felt that the "danger" (or something else) could have been avoided by that person.
Not saying it is a good thing to do, but when I have felt this, I couldn't control it. But to the observer it seems harsh and bad (which it actually is).

