Final answer:
The web application check that is not considered critical to review according to the author is Logging.
Step-by-step explanation:
According to the author, the web application check that is not considered critical to review is Logging.
In web application security, authentication, session management, and error handling are crucial aspects to consider and review to ensure the safety and integrity of the application.
However, logging, although important, is not typically considered as critical as the other three.