For future repairs, always test the phone in front of the customer prior to repair. I understand you couldn't based on your description. I always check the following.
# Make a call testing ear speaker, speaker phone, and mics.
# Both cameras.
# Face ID.
If the phone is blacked out, I let the customer know that the drop and or damage sustained could have caused other issues that are unknown until further testing.
To answer your question, yes, an OEM pull is supposed to work now using the repair assistant.