Here, have a look for yourself when news of MCC surfaced:
http://m.neogaf.com/showthread.php?t=820291&page=1
There are the usual few port begging posts but in no way is the discussion dominated by exclusivity talk. That's the difference.
Difference in thread devoted specifically to the topic? Is the Crash thread where it was just announced or discussed in general overwhelmingly about platforms like you suggest?
Microsoft officially commented specifically about the demand for a PC version of MCC here. They did an interview specifically about it.
http://kotaku.com/microsoft-explain...m_source=Kotaku_Twitter&utm_medium=Socialflow
Meanwhile like no journalists will even bother to ask about this.