At one time, “goddamn” and “Hell” were one-two on the cussing Hit Parade, basically when my parents were kids and before that. When I was a kid, one-two was the f-word and the scat-word. These days, I would guess one-two are the n-bomb and the c-word, and nowadays, when people refer to the f-word, they frequently mean something else.
As for what you wrote, as true as it is on its face, stripping out the knowledge of who wrote it, it does read like it does give him a pass for the lies he tells or outlandish things he promises, as though they are inconsequential and/or he doesn’t really know what he’s even saying, and mean nothing. Read it in someone else’s voice and you might get a feel for what I mean.