Right, I get that. I didn't know what happened and I had the luxury of watching it on the DVR. I don't think he was saying "Wow, they really gave that to us". If you hear him break down the play he said he was aiming for the back of Diggs helmet. He knew he had three guys on that sideline and tried to put it far enough out that Diggs could get it and toe tap in bounds. Then he said he was screaming at him to go out of bounds, as I believe everybody was. The fact he DIDNT go out of bounds is a great play in itself. So yeah, nobody expected a touchdown on a play designed to be a tight sideline throw and catch.
It's interesting that you interpreted that way. Must be a personality thing.