Swearing serves a purpose: to express strong emotion. In this case, the author is expressing that it's really important to take breaks. I don't think there's anything wrong with that.
The problem I have with this is nicely illustrated by a (possibly apocryphal) story about John Steinbeck. He wrote to a college paper that was printing an entire page of the word "FUCK" He asked them to stop, not because it was offensive, but because it was devaluing the word. Swearing only serves to get a strong emotional reaction when it's uncommon.
You seem to be disagreeing with a fictional comment that said "People should swear a lot," rather than the real parent, which said "I think it's pretty well justified in this case."
Actually, that isn't what the parent said, and I'm not arguing with the parent. I'm making a point that cursing only maintains it's visceral power when used sparingly, which I don't think it really is in this video or in some recent articles.
