Fair enough Chet, but I think you may have misunderstood what I was saying. I hear you when you identify that the video is promotional, but I daresay that's not exactly a secret! I didn't share the video because "bendix brakes are best", so I'm sorry for the misunderstanding, and I'm glad that you don't use free 4x4 videos from Australians getting paid to promote a product to present things to coworkers in what sounds like a scientific/engineering context - sounds like they'd be a bit mean about it if they'd laugh at you
I shared it because it illustrated my point that longevity is not the biggest consideration for me when selecting brake components for my vehicle, performance matters most. And performance is impacted by things like heat dissipation -
This has been
pretty reliably
established by quite a few
reputable sources (plenty more out there for anyone wanting to Google more). Therefore, when selecting brake systems for my vehicles, keeping heat dissapation and performance at the forefront of the decision (and not longevity) is how I make my decision, which is the question you asked.
Best performance may be accomplished by OEMs, but it may not be the best choice for all use cases - it depends on the type of vehicle, the modifications made, and a whole host of other factors that are specific to the context. For instance, there's lots of overland applications where a person might prefer how easy it is to keep disc brakes free of debris, especially if they are in the mud a lot. If they drive a GM, they're golden, as they've typically had 4 wheel disc systems for a while now. But if they prefer Toyota reliability and are in a Tacoma, then they might want to consider swapping the rear drums for discs to get the best performance out of their truck when they need to jump on the no-go pedal. It's an individual decision that depends on the truck and the driver's use case. The overall point is that for my decision making on parts, performance matters, not longevity, so I don't automatically go OEM - it depends on what performs the best.