Here's recent update to USCIS policy manual.
https://www.uscis.gov/policy-manual/volume-6-part-b-chapter-4
If the initial filing does not contain sufficient evidence to demonstrate eligibility by the appropriate standard of proof, USCIS either issues a Request for Evidence (RFE), issues a Notice of Intent to Deny (NOID), schedules an interview, or denies the petition depending on the facts and law. For instance, USCIS has discretion to deny a petition without issuing an RFE or NOID if there is no statutory basis for approval or for failure to submit initial required evidence.[2] However, USCIS must provide the petitioner with sufficient detail of any derogatory information that is unknown to the petitioner when USCIS intends to take adverse action on a family-based petition (through a NOID, RFE, or interview).
This is mostly for AOS, but I'm sure N-400 is somewhat affected too.
You can decide what you want to do.