I heard an interview by a doctor in plant physiology with an emphasis on plant senescence who claims that when a plant knows it's dying and it has not been seeded, it changes its monoterpene characteristics due to the stress of knowing it's not going to seed another generation, so he recommends leaching nutrients.
That sounds plausible, but it is far different than a peer-reviewed study and makes it not much better than the RX Green empirical study. But legitimate studies won't happen in the US until the plant is rescheduled.
To your question, no, nor have I asserted that flushing does anything, which is why I stated that their answers of which weed tasted best or worst would change if given the same samples over daily for an extended period of time. I would change that position if that study said they had 500 regular smokers take the tests and those were the percentages.
As is, without naming who the experts are or at least how how many of them there were, I can only conclude that there were very few testers and they were probably like budtenders, as "industry expert" is a very vague and pretentious phrase when asserting someone's expertise for a study they expect people to take seriously.