There are those that can be reasoned with and those who will not be resoned with, the link you gave is an example of the latter wherein someone has approached orthodoxy without any semblance of charity, no attempt to understand our actual position on things. If the author of this article had done some research, basic research, maybe asked an Orthodox clarification on things he could have put together a much more thought provoking article.
If anyone is going to argue on this level I suggest you totally ignore them. There is one thing to point to, the apparent dichotomy the author sees in orthodoxy's emphasis on Tradition and practice, church life, icons and the like, between that and the bible. How might this man get things done in a precisely biblical way I might ask? Where is the biblical outline for a worship service? Should we gather on sunday? Thats not strictly speaking a biblical injunction. What is this bible that is to be my sole and only authority? Are hymn books permissable when they aren't biblical? Should Christians have specific buildings by which they gather in for the sole purpose of worship? The apostles worshipped in the temple and synagouges primarily. There is the underlying assumption "we have understood the bible where these Orthodox have not."