You find me the press release. I find it very hard to believe that a random computer glitch took the form of a 2 second sequence in which a half-faded Aeris plays with a group of children before blinking out of existance. It's a random sequence of 1's and 0's that just happened to align themselves into a few second perfectly coreographed display of a random character model that JUST happened to be someone who was of major significance in the plot.