Open mind? How's this? The top of a ice cream container was made to ridicule Allah. Actually, not really, it was just swirls, but it looked like an Arabic letter. According to this logic though, it wasn't coincidence at all, but a conspiracy to denigrate Muslims.
You seem to be big on logic, try Occam's Razor.
Any painting can "hide" alternate images---completely by accident. People can see what they want to see. It's completely subjective. Even if a painting was purposefully designed by the artist to contain hidden images, it still doesn't scream "conspiracy!" Unless these guys have genuine proof in written form of a conspiracy certified by a document expert, it's pure conjecture and mental wanking.
Occam's Razor? Actually I prefer Gilette. They shaves very close.
LOL.