The test process can only be as good as the programming process. Therefore, this is a trick question and there is no good answer to it.

Processes can be automated and thus are more important than the people involved.

The test process is the most important sub-process of the product development process.

Generally, a software product is the output of the product development process. The product development process has many sub-processes, i.e., requirements engineering, design, programming, and test process. Only if the sub-processes are improved, the product can become better.