One big problem is that the animation disrupts the process it's asking users to do and there's no intuitive way of stopping it.
It's eerily similar to scene from a movie I haven't fully written yet, so we pick it up from the middle-end of scene 3, where we view a user doing various important tasks...
..
user: Hey, there's an application just waiting to be selected! I think I'll select it!
(user goes to select the application, but supermessage flies in front of him and
blocks his path)
supermessage: PLEASE SELECT AN APPLICATION!
man 1: It's a bird!
man 2: It's a plane!
litte girl: No, it's SUPERMESSAGE! (takes a lick of her ice-cream cone)
(a few seconds of awkward silence pass while user stares at supermessage)
user: Um...supermessage, can you please move, I'm trying to select an application here?
kthxbye
supermessage: (fading into the distance...)
...please select an application!
...please select an application!
...please select an application!
(user selects an application. Meanwhile, audience applauds, laughs, and cries)
..
The moral of this scene is that I'd rather have a standardized notification than this, either as a modal for "AHA!" messages, or in the message bar for "meh" messages.
P.S. I'd actually really like your idea if you could find a good way to prevent it from blocking user interactions! If you do that, I also suggest removing the static message and just have the super-message stick once the animation is done.