No. It sounds very theatrical, and potentially traumatic for the kids.
Honestly, I don't let my kids participate in 'Pokemon', but I just explained to them why, I didn't obliterate toys in front of them.
(Why no Pokemon for me?)
A very close friend covered a 'unit' on 'Subliminal Messages' in one of her college courses. (It may have been in a course on anthropology, I can't remember.)
In the course they discussed a wide variety of 'subliminial messages' and where they can be found.
(For Example: A RaceTrac Gasoline Rep. spoke to the class and admitted that RaceTrac plays outdoor music at some locations, with a sublim. mess. of 'pay for your gas').
At any rate they actually LISTENED to a few examples in class.
One of the examples was a Pokemon theme song, "Gotta catch 'em all".
They played it in reverse, and it said 'There is no Allah', over and over again. ('Allah' simply means God).
THIS SOUNDS like so much urban legend. And honestly, if I were you I wouldn't repeat it, just in case it was.
But, I had a first hand account. And she had no reason to lie about it. So I don't mind relaying the information.
(The professor was urging the students to become involved, and wanted legislature passed to monitor or restrict subliminal messages.)