What is in the affidavit needs to be able to stand up in court; if anything the DA uses can be proven to be incorrect, the whole case could be compromised. The DA has to feel reasonably confident what he is putting out will pass any future scrutiny. Also, a judge needs to review the information submitted and rule it is sufficiently credible to issue an arrest warrant. Misstatements have definite consequences, legally and possibly professionally.
Compare that, first of all to mainstream media, which although it has some liability for what it reports, is after all looking to attract viewers, and second to the Wild West of Internet YouTubers, influencers, rabble-rousers and propagandists, who by and large have little concern for anything other than the number of clicks they get, and certainly have to have no professional or ethical qualifications whatsoever.
I have to believe the legal professionals have to be functioning at a higher ethical and professional level that other possible sources of information.
Is there some reason to disbelieve them, and give other media or Internet sources more credibility?
Just BTW as I've posted in this thread previously, also I think the time frame indicated in the affidavit makes sense astrologically.