Answer: it is important, when the weakness or strength in the authors work, explains the differences in your results.
Explanation: This means that for a particular author work to be given a paragraph in a literature review, that means the work is has been done using one or more points that is gotten from the authors work.
In a literature work, proper acknowledgement of an author is very important, to avoid been sued for plagiarism. When an authors work is not properly referenced it won't only be an issue of plagiarism, but it won't help the readers to understand the work more better.
If a literature you review, is the main source of your point in a paper work, it is very important a paragraph is given to the literature work, so as to explain the correlation with your work, and to help the readers understand your point more better, by understanding your source of central point.