The Department of State is not bound to follow what the USCIS does. However in this situation they do. The following is from the DOS website...
The translation must include a statement signed by the translator stating that:
The translation is accurate, and
The translator is competent to translate.
https://travel.state.gov/content/travel/en/us-visas/immigrate/the-immigrant-visa-process/step-5-collect-financial-evidence-and-other-supporting-documents/step-7-collect-civil-documents.html#:~:text=Please note that all documents,be accompanied by certified translations.
We also know that some consulates sometimes go rogue. Apparently this is the situation here.