I was listening to a podcast where the question of whether Alawites revered Ali as a God or not was brought up, and the lack of any clear answers surprised me. How would it be possible that even in the age of information we still cannot provide definite answers on, what seems to me, fundamental doctrinal questions within these faiths.
Much of their doctrine is secretive even from their own general members, meaning most young Druze and Alawites themselves do not know the details of their religious beliefs. You will get contradictory answers from them if you ask them.
Their belief systems have been so secretive for so long that even the communities themselves have started to be confused over what their belief systems are. It has been mixed with local Islamic or Christian beliefs and different cultural elements have been added.
But here's the thing: Alawite and Druze beliefs are NOT like Islamic or Christian one. They are not organized and rigidly structured. Their beliefs are philosophical in nature and this makes it difficult for outsiders or even community members to study and analyze them, and there has been very little analysis of their beliefs anyway. So yes even though many of their books are available, they are "vague" and abstract in nature. Why do you think they got persecuted? People fear what they don't understand.
But to answer your question, no, it does not hold true. The information is available online. You can find it. Check out Ayman Al Tamimi, a Syrian (Druze) researcher who is well versed in these beliefs and goes into detail. It's just a matter of being able to read it and analyze in the way it was meant to be analyzed and not in the way we understand modern and organized religion today.