Amen. I think this has always been the case and typically when any assembly starts to think it has a monopoly on the Truth is when heresy becomes mainstream within that assembly.
This is what makes it possible to get a very godly Roman Catholic, for example. That person may in fact be ignoring most of the official doctrine and going along with the actual gospel.
While I think this is a nice hope, I believe it is misplaced. They preach and practice a different gospel. I don't see how that gets reconciled at judgment.
The Lutherans come the closest to the Roman Catholics with their belief in consubstantiation, but they still hold to the Gospel in that they believe you are saved by Grace Alone through Faith Alone. The Romans don't they believe in all kinds of intermediaries, and think they need to work their way to salvation. I think the Romans have moved so far from The Gospel they have become a separate faith unto themselves.
Evangelical worship groups should use their freedom in order to embrace a better set of doctrines as God enables them to. God wants that. However they dont need to get it perfect in order to be effective.
Evangelical Christians are the strongest group preaching The Gospel to the world. The world may be going down in flames right now, but The Gospel is being preached everywhere because of Born Again Christians.
I take the simple minded approach now that good is stronger than evil. If you get Christ you get the good. The gospel implementation in a life will NEVER be perfect this side of eternity, in this mortal coil. You cannot tie an individual Catholic's soul to the official church teaching if that Catholic does have Christ. How it any discrepancy reconciled at judgment? Christ's blood. Same as for our own shortfalls of practice that persist to the moment we die. "I was shown mercy, because I acted in ignorance and unbelief."
how it => how is
So be careful of blaspheming the power of Christ’s blood as if a wrong doctrine believed after the actual acceptance of actual Christ as Savior of one’s eternal life (which is an atomic act that pushes all else away at the moment it happens) could rise higher than that blood or pry the accepted Christ away. Once I realized Christ’s actual ability to pierce through evil and stopped blaspheming the blood, all manner of supernatural vistas opened up before me, all biblical and all good.