Partially right, but mostly wrong.
If you even bothered to read his post at all, you would noticed that he mentioned something called Xbox Connect (XBC for short.)
And therefore, before you posted on a topic you were completely ignorant about, you should have done some research.
XBC is a tunneling service that makes your xbox think its connected to a LAN network. Or connected to other xboxs. Using XBC it is possible to play H1 with someone also using XBC over the internet.
So yes Bungie didnt add online multiplayer, but it IS possible.
[Edited on 01.13.2010 2:26 PM PST]