There is general and special revelation. Either of those can happen through direct revelation. Are we saying that as Christians the Holy Spirit does not direct us, teach us, speak to us? Agreed, this revelation we receive as Christians from the Spirit must always align with God’s general revelation given to us through scripture. It can never be in opposition to scripture... but I’m not ready to deny that the Holy Spirit was given to us to teach, direct, and grow us as Christians. In guidance that applies often to just us.
You are correct.
But if you look at the quotes they are presented like a new revelation for all of God’s people. If that is the case we need to open the canon of Scripture and add the Beth’s Epistle to the American Church.
I hear you and many pastors like John Piper agree. However, one must question if going to Starbucks for an $8.00 caramel machiatto fits your description.