As it is with any material, there is reasons and information with it. If you have a problem with biology book because it was written with evolutionary comments, will it stop you from continuing with that education class on your way to getting your degree? How often in life are we thrown dross? How often do we wade through it all just to get to the little gem that is beneficial. Just because it is not scripture, but closely related doesn't make it forbidden. It is like a protestant studying early church father material. It is not the material that is dangerous it is the person reading it. Not all that read the material are influenced, so I say those weak in the faith should not read it until they have a strong anchor in the truth and are not stumbling over or falling for the pit falls.
Most people who read other works by different faith, do so to gain the knowledge to relate to the other. It isn't to change, or be converted to that faith. I am not saying it won't happen to some degree, if it speaks to the heart of the reader on a material that has not been addressed.
As it has been said, in the case of the Talmud, it gives many insights into terminologies, theologies, ideologies, and traditions that are found active and alive in the first century when the disciples and Yeshua walked the earth. It explains the controversies, the ideologies, the hopes and dreams of the people. It explains why many leaders missed the boat when it came to Yeshua. I think we have a lot to learn from their mistake so that we do not make the same one, and assume we have all the truth in its true colors.