I feel like a true breeder should have the ability to sift through 1000s and test their own seeds or close friends whose garden u have access to, tbh that's the only way they are really gonna know how good/consistent the seeds will be.
Of course that's not feasible for most especially running thru 1000s, sending out 'testers' is better than no one 'testing' them at least... not many people are really what I think are 'breeders' though, just pollen chuckers that make f1 crosses mostly, that's fine as there's good chuckers with fire genetics but just not at the stage breeding will be at, using lab testing, working lines a lot more, sifting through many, many plants. f1s are great and keep more diversity so no issue with that, just too much hype pollen chucking and releasing/selling every seed made rather than using them for a another project refining the line for better yield/structure or even resin quality...