I do not know of a "critical incident" that doesn't have a corresponding video (except for deaths in prisons and negligent discharges that don't result in injury). If there's no actual media to go with it, they'll still show a talking head reading a statement listing off the address and police version of the narrative (you can see examples if you look at LASD, since they've halfassed their body cam deployment). I'm curious to hear if you know of any exceptions (excluding events within the last 45 days or so, before the deadline).
LAPD releases a list of all of the critical incidents and the videos, so should be easy to cross reference and see if anything is missing.
I don't know if LAPD releases much of that BWC footage in unedited form, but where I live (Chicago), a civilian oversight board reviews use-of-force incidents and makes BWC footage and other materials public [0], and in my experience as a homicide researcher for UChicago, officers were initially skeptical of BWCs, but now they consider them a valuable piece of personal protective equipment, as they are often exonerated by their BWC footage.
Doesn't say a lick about what they omitted from YouTube.
Am I reading this wrong or is this a very biased sample? Of course videos are more likely to have video.