I tend to agree with that sentiment. If I take notice of something, I point it out to someone responsible... but I dont go bananas about it.
I was at Subway once, and piece of the mesh trays that they bake the bread in came off into my loaf. I tore that section out and showed it to them, suggesting they check the bread trays.
They went crazy apologizing and offering me free this and that. I told them it wasnt necessary. I didnt put it in my mouth, so I didnt choke on it or swallow it. I noticed it in time.
In those types of events, if I was harmed in any way, got sick, or some such, then perhaps... but honest mistakes and accidents DO happen. What I hope is that they take action to correct the mistake and to prevent it from recurring.
However, when I see the same thing happen again and again, then I might get testy about it because it's apparent they did nothing to fix it.