I don’t know. Is a random YT channel more trustworthy considering their reliance on sponsorships? And once they do interviews, they face the same issue
I also just don’t see interviews being a big audience draw (at least for text-based news). It seems there are so many other, bigger problems than the issue of access: lack of revenues, lack of interest in quality journalism, …
It's not that the random YT channel is actually more trustworthy, but that it exposes the audience to adversarial perspectives which mainstream access journalists hide — thereby eroding the trust of young audiences for mainstream journalist outlets compared to previous generations for whom such adversarial perspectives were less available.