The reason the majority of the churches are not experiencing a great outpouring of the Spirit is quite simply because they do not want it. They're rejecting it. They may not exactly know what they are rejecting, but that's precisely what they're doing. A lot of the reasoning behind all of it is the pastors and other leaders standing in pulpits and saying that one is saved by a simple dedication to the Lord. There's no repentance, no baptism, no Spirit infilling or anything. They don't encourage them to seek anything further, so therefore they don't.
Christians, and that term is used loosely in some instances, have rejected the Holy Ghost from the beginning. They do not want it, and in most people's minds, they have been convinced that any kind of spiritual presence or outpouring is demonic and ungodly. And only the counterfeit --- the Devil himself --- would convince someone to believe that.
The moving of the Spirit and believe experiencing Spirit baptism evidenced by tongues has always been around. Of course, all of it probably is not documented because it wasn't the orthodox of the times. People thought they were fanatical, and I'm sure they weren't allowed into any kind of formal or traditional religious gathering. And if the Spirit isn't welcome in a gathering, He's certainly not going to force Himself in. He's a gentleman.
In Pentecostal and other full gospel churches, the Spirit has moved abundantly, but that doesn't mean it's only meant for those churches and the people that go there. It's a Bible thing. Not a denomination thing.
And even in Pentecostal circles, you will come across things that aren't right. Flesh has been known to get in the way.
My point is people have to want and strive for more from the Lord in order to get it. He isn't going to force anything on anyone and make them to believe anything that they aren't going to see. We need to stop reading the Word to prove man-made creeds, doctrines, or denominations, but let it speak for itself. When you go into the Word with the intention on proving something the world or men have "created", then you're going at it with the wrong attitude and intent.
Let the Spirit guide and direct you. That's what the Lord gives it to us for. Pray for direction for the Bible to speak for itself, not for you to make it speak.
God bless.