I grew up with drum brakes, and never had an issue, but then I never was a "performance" rider, or even heard of track days.
I'd certainly be concerned if my brakes didn't work for any reason, but as a recreational rider, I really don't care what brand it is as long as they don't malfunction. Brembo or ByBrembo, OK by me, but I appreciate that RE was proactive on this. Just sayin'.