It's interesting to see some defend that with "Maybe it will get people to read their Bibles," but those same folks would have real issues if such license were taken from the pulpit.
I get that they want to enhance the entertainment value and make it easier to watch. It is interesting to listen to some discussions surrounding the series, such as "Peter was married?" even though the gospels clearly say that Jesus healed his(Peter's) mother-in-law. They find it hard to believe that Peter/Simon would abandon his wife to follow Jesus. The series also finds a way to deal with James and John abandoning their father and his business to follow their Lord. It has Matthew and John (apostles) recording the words of Jesus even though there is little evidence that happened. I think that was once thought to be the case, but further study has shown that Matthew has part of Mark in it, so probably was written after Mark. The book Jesus and the Eyewitnesses explains a lot of that, but is not always accepted by current scholars. As I have said, I am different.
From a secular viewpoint, it might offer insight into different cultures. In some (many?) middle eastern cultures, men view wives as being replaceable...but they only got the one mother. I've not heard of that book. I just placed an Amazon order for some stuff, and went back & added the book, since I've already hit the free shipping threshold.
The book is written by an Anglican? theologian who is a professor emeritus at a St Andrew in Scotland. He has written several other books supposedly for the layman, but he is a bit of an iconoclast. I hope you get a bit out of it. I did.