Do You Trust This Computer? [video]

There remains the possibility that there is a difference between "the set of top experts in the field included in this documentary" and "a survey or statement from the larger share of practitioners within the field". This ... runs into a few additional problems.

Documentaries can (and with some frequency are) selective and nonrepresentational. That is, a documentary's goal is not to Reveal The Statistical Truth, but To Tell a Specific Story. Documentaries are driven by narrative, not random sampling and statistical analysis.

That said, stats can lie and crafted stories can be quite useful.

A large-scale sampling of opinion is also ... largely just that. A large-scale sampling of opinion. Even if that's expert opinion. It is not the same as arriving at a truth (unless the truth you're seeking to arrive at is "what is the typical or general opinion held on some matter by some population?").

The views and concerns of top practitioners within a field is often highly significant. It may still be inaccurate (or be inaccurately portrayed). But these are the people who've worked with a thing for a long time, who've seen what does and doesn't work, what is or isn't hyped. And you'll often find exceptionally strong critics of various fields or technologies.

Leading atomic scientists in the U.S. and USSR both came to oppose nuclear weapons: Robert J. Oppenheimer and Andrei Sakharov. The Father of the Nuclear Navy, USN Admiral Hyman Rickover, came to oppose nuclear power. There are numerous technologists who are now questioning the goal of universal connectivity (myself included, though my qualifications are expressly not available for or any basis for credence). And in the field of AI, there are numerous significant, long-term, and leading researchers who are raising profound questions of advisability and risk.

Or, you know, you could go with the Good Humour guy, Pinker.