Here are the fly-leaves between the title page and the contents section. The quality is poor, for which I apologise. The scans are not retouched so that there can be no speculation that I have 'doctored' them.
You will notice the fact that the First Presidency and the Council of 12 were all in agreement with the contents. Not just initially (in 1915), but in reprint after reprint, the latest being in 1981 from the 1973 edition.
The actual wording preceding Dr Talmage's disclaimer that this is actually his own work and/or assumption, invention, or hypothesis states:
The author of this volume entered upon his welcome service under request and appointment from the presiding authorities of the Church; and the completed work has been read to and is approved by the First Presidency and the Council of the Twelve. It presents, however, the writer's personal belief and profoundest conviction as to the truth of which he has written. The book is published by the Church of Jesus Christ of Latter-Day Saints.
How can it possibly present a view that is not endorsed by the same body? Would 'God's only true church' print, publish, and declare suitable for study purposes ANY material with which it disagreed?