I would've walked out too...
...and walked into Joel Osteen's church, just kidding.
Universalism doesn't make sense to me. If we are all saved, then why waste our time trying to imitate Christ?
Lets get it straight. God saves us. We do not save ourselves, through any of our own efforts. We did not decide to be saved, we do not continue in the decision. It always was and is God's decision.
That is the Orthodox teaching on Sacramentality, or the Divine Mysteries. For the Pentecostals, baptism is a conscious decision and affirmation a person makes to become saved. In Orthodox, Baptism is a Divine Mystery which in God's own particular Time is revealed to a person, and in a quite literal sense saves the person. A person can not save themselves from falling of a cliff or drowning can they? Neither can we save ourselves, when we realize we are in the dangerous free fall of irreverent life perhaps we may cry out and ask to be saved, but it ALWAYS is GOD ALONE who does the saving.
So in the depth of Orthodoxy, we do believe in Universalism, in the sense that we are invited to join the One, Holy, Universal, Apostolic Church of our Lord Jesus Christ. There are not distinctions, it is a Universal Church. We are not saved because of our conscious decisions to be a part of this Church, actually its sort of the opposite. We are saved because God invites into His Church, and carries us through in it every new day of our lives. The Apostolic fathers may do the planting and the watering, but God causes the increase!
So we should not think it anything from ourselves. ANYONE can be invited by God to the Church. We can not be so naive as to suppose we know how that works, or to limit our unlimited God. Even the Apostle Paul mention baptisms and prayers being offered to the Dead. If those were offered for the dead, how are we to say that is not an example of Universalism even in a Pentecostal sense? Many of the Fathers have agreed as was mentioned before.
Therefore I think the simplest way for us Christians to think about this is to say we should only focus on ourselves. We shouldn't in any way, shape, or form think about the sins of others or the salvation of others aside from praying that ALL receive it in God's Time and Mercy. We should assume that God would do this, and have joy in the process. From my upbringing, I have met so many Protestants whose religion was bitterly spiteful and vitriolic, who are way to concerned with the sins of others and the salvation of others, but rarely inflecting inwards which is precisely what God intends for us. We can only find God inside ourselves first, and then we shall only be able to see Him in every one else, and sin will become illusory in the love of God. Orthodox is not a legalistic religion, God alone can save us from Hell, so our Orthodox lifestyle is not a means to an end being salvation, rather it is a process over a lifetime to learn to have a growing, individual, personally and affecting RELATIONSHIP with God because He alone can save us and not of we ourselves or any of our own efforts regardless of their sincerity.
If we are following Orthodox in a legalistic way, in a tit-for-tat "I do say these prayers, go to the Liturgy, do these fasting days" to be "saved" or to avoid "hell" then we are only missing the point entirely