That was ... interesting
In a way, I think that I may know what Mr H was trying - and failing - to put across, possibly because he would drop himself in the do-dos.
Some time ago, probably on AD, someone posted up their diary notes from their police driving course. There was one bit that took me a moment to understand:
"Accelerating up to lower speed limits" Huh? Surely, if making progress, that should be "Braking down to lower speed limits"?
Then I twigged: accelerate accelerate accelerate GLF until ... BRAKE!!!!!!!! for the lower speed limit. No 'thirds' or steady state period, where Mr H's 'dynamic braking wouldn't fit. He mentions 'progress' briefly, does he have GLF style in mind?
Yes, he's right in some ways. On the long-defunct Visordown forum, in a discussion on smooth riding, acceleration sense, etc., a trafpol said that, on a shout, you would definitely see him braking, and firmly.
And that's a key point, it's time and place. In many of the bends that RL was riding through it would be near impossible to brake-throttle-brake-throttle to try and chase an extra fraction of a second.
Again, Mr H is right about using the brakes potentially being a quicker way of covering ground than using engine braking (not gears) alone. That, though, will depend greatly on the speed change required to negotiate the hazard.
Your 'standard' is how you drive alone, not how you drive during a test.