A Question of Credulity

When the producers of Eagle Eye and Get Smart realized they had the same plot device at the end of their movies, who do you think got more upset?

Does anyone really think that a bomb tied to a certain musical note is a high-probability method of timing? What if someone happens across the note beforehand? What if the musicians flub the song?

What if someone comes along and stops the musicians from performing? ... Oh wait. That's what happened in both movies.