Sony wanted rights to the IP. OWI wasn't havin that. so they shopped around for a publisher who would allow them to keep their IPs. EA went for it. OWI couldn't get the game to work on PS2(something about the coding, i'm not a tech guy so i'm not entirely sure what the problem was).
side note, EA refused to put anything extra into advertising since the game was only going to work on XBox. Low advertising, low sales. OWI has to shut down their game developing.
Inverse proportion explosive dynamics has never been proven conclusively in a laboratory environment.