Your facebook Posts and the Awesome Life

A print on a shirt says, "I truly hope your life's as awesome as your facebook posts say." Amusing. But more than that, it got me thinking.

Of course, I understood it as sarcasm, a bitter remark from somebody who has seen "awesome" posts of another on facebook, but does not believe it's half the truth of that other person's life. It could also be a well-meaning wish, but that would be a weak conjecture considering that it is printed on a shirt, and it just has to be funny, at least attention-getting. It cannot mean what it says. Even if it does, it would still sanction disbelief, otherwise, "hope" should be replaced with "believe" or just remove the first four words altogether.