There are a number of errors in the listing, some of them significant and some others not so much so. But what stuck out the most was the brevity of the list of churches and, as well, the scarcity of the information given about them.
Only a few issues of concern were taken up in the case of each of the denominations listed, and each of them was boiled own to such a basic statement that each of the churches wound up sounding almost the same as all or most of the others.
Here are several of the significant ones (IMHO) that were not treated well:
1. "The Episcopal Church" and its affiliates around the world ordain women; most other Anglican churches do not. The Episcopal Church is the largest of the Anglican churches in the USA, however.
2. Baptists do not have two "sacraments." They reject the traditional understanding of the nature of a sacrament plus, usually, the word itself. Instead they claim two "ordinances" which are believed to be purely symbolic and to be done as signs of obedience. No forgiveness of sins is associated with an ordinance and no grace is bestowed through the reception of them.
3. While all the denominations would say that salvation is ultimately the result of the gift of God's grace, Catholicism teaches that faith and the performance of good works by us, not just the reception of the sacraments, determine our eternal destiny, either Heaven or Hell.
4. Contemporary (worship) is referred to in a number of places, but the meaning of the word is never given. It is, in fact, a catch-all term and can cover a wide range of non-traditional, non-liturgical, forms of worship. Obviously, I would say, for a seeker reading the book and trying to sort the churches out, this isn't very helpful.