According to the explanations provided by Ms. Gravitis-Beck, you proceed in the exact same way as is being proposed in the amendment, and in Mr. Julian's subamendment.
The complaint is reviewed to some degree before going on to the second stage. It may then be reviewed more thoroughly, or a simple acknowledgement may be sent to the complainant. The fact remains that we want some assurance that every complaint is at least reviewed. That's all the text of the amendment says.
When the amendment was drafted, I was tempted to insist on the use of the words “doit examiner”. Ultimately, I settled for the word “examine”.