Morality

[Angrboda]

Yes, it's a rationalization.  If things aren't going as if there was a god, one needs an explanation for why this inconsistency is occurring, or else the belief in God is wrong, because all things happen according to his plan.  But the only actual source for how things should go is revelation, so even with the rationalization, it's not a rational stance.  A theist cannot acknowledge that there is evidence that God does not exist, even if he or she has to appeal to unreason to deny it.  Unreason can lead to the formation of religious belief, but it is also essential in maintaining it in the face of obvious truths.

The only people being unreasonable are those who blame God for human choices. Consider a family vacation. The parents decide where to go, how to get there, and when it will happen, and plan fun activities. Everything happens as planned but the children whine and complain. The kids play on their phones instead of taking advantage of the activities, etc. One way or another the vacation happens but the parents cannot force the kids to have a good time. Similarly, it is illogical blame God because He gives you choices within foreordained events and does not program you to always make specific choices.

Pro tip: God doesn't give you anything.