We need to be Christian for the reasons the author outlined: "For God so loved the world that He gave His only-begotten Son, that whoever believes in Him shall not perish, but shall have eternal life."
That, by the way, was me, from memory, and may not match the text the author used....
The inclusion concept rejects the idea that it's a free for all....the author points out that that is pluralism...and only a few "out there" (my phrase) priests in the Orthodox Church believe that, just as exclusion, the limiting of the action of the Holy Spirit to the Orthodox ONLY...placing limits on God is only believed by a few extremists. He states, badly, and with much unclear preamble, that his point is inclusion.
We ARE called to believe....that is clear...if we are NOT, then that is the heresy of pulralism...the Wiccans are just as valid as the Muslims are as valid as the Orthodox. That is why the author, IMO, on a careful reading, felt it necessary to try to explain who God saves in the first place....to try to AVOID being accused of pluralism.
I wish to remind that the Church says we believe God CAN/ MAY save those He chooses, from anywhere. NOT that we know He does....only that it is the supremest arrogance in US, MAN, the creation, to speak for the Creator in this...so...the Church says....WE, the Orthodox, are to follow the teaching of the Church. This does not include judging the state of another's odds of salvation.
MEMO: Remember, please...the teaching of the Church concerning the three days Christ spent in Hades....those who had fallen asleep before Christ's incarnation were givien the opportunity to know Him, and accept Him, or reject Him, then. Can we suppose those who were not given the opportunity to know Him after the Incarnation, due to circumstances such as religious persecution or remoteness, or death in youth, etc., will not be given that same opportunity to meet Him, and accept or reject Him? A young Hindu, for example, who lived in a remote village, lived a life otherwise blameless, or no more so than most Christians,
but who lived it without contact with a Bible, or an Orthodox Church...would we imagine Christ would be unmerciful? Or would we say...others were given the opportunity to know Him after death?
The point is....we do not know...we cannot know...consistently, the Church says, "Christ is Merciful"...They say this without saying "All religions are equally valid. They are not. "Grace and Truth come from Jesus Christ"
Did that answer your question, Tom? It was a horribly written article.