Free Realms dissapointment

Back from my vacation I stumble upon a weird fact. Free Realms is platform specific... Now, I don't understand the technology behind the scenes of Free Realms but it seems to me that when you make  a entry level MMOG that is designed to be free fast and easy to play. You might not want to block out 10% or computer users, namely Mac user.

I just launched the website on my MacBook Pro and simply couldn't find the play button. No information. No anything. I understand the huge difference between building for one versus two platforms but in a production as large as this and focused on such a low requirements user demographic why would this ever happen? I understand that Age of Conan doesn't support Mac. But Eve Online and World of Warcraft don't seem to have a problem making it profitable. Why is Free Realms not on more platforms?