Wow. In one fell swoop, the entire New Testament - and especially The Book of the Revelation of Jesus Christ - is removed from the Catholic Canon, no matter which member of the Trinity was involved in it's writing...
...and that from childhood you have known the sacred writings which are able to give you the wisdom that leads to salvation through faith which is in Christ Jesus. All Scripture is inspired by God and profitable for teaching, for reproof, for correction, for training in righteousness; so that the man of God may be adequate, equipped for every good work...
1 Timothy 3:15-17"Write in a book what you see, and send it to the seven churches: to Ephesus and to Smyrna and to Pergamum and to Thyatira and to Sardis and to Philadelphia and to Laodicea..."
- Revelation 1:11
The problem you have is explained by the author of the article very well. The Holy Scripture does not contain a commandment of Christ to write the gospels, for example.