The point of the video is that intermediary companies like Driscolls or Taylor Farms focus their efforts on building "accountability sinks."
They give farmers a 500 page document describing in detail how the produce must be grown, but then they provide little to no actual oversite, while producing enormous pricing pressure on the farmer. Any farmer who actually follows the 500 page document will not be able to make any money, so every farmer is compelled to violate the rules.
Then when product is contaminated Driscoll can say "that farmer wasn't following our policy we've cancelled our contract with them" while making no effort to actually clean up all the other farms, who are definitely violating the contract because it's impossible to follow it and make money selling to Driscolls.
What’s your proposed alternative? If the FDA made the 500 page document instead, they aren’t providing day to day oversight.
By logic, a Driscoll or Taylor Farms set of rules needs to sit beyond the regulatory minimum (their lawyers would hate them putting a violation of the regulation in writing).
So, even if a farmer violates the contract, the existing regulation is either insufficient or was also violated.
It seems to be the (modern) American way.
There's not really an alternative that also lets farms be independent. If a GSPs really wants that level of control over farms, they might as well start buying them up.
The reality is that the documentation is like software T&Cs. You get to run your farm however you want and Driscolls has some CYA for later.
The reality cuts both ways. You can still sell produce directly to local grocery distributors that pay higher, but the requirements are going to be even more stringent with less guarantees.