In answer to your question: no, I wouldn’t want to be the first penguin off the ice flow to do that experiment. However, if one or more people with trustworthy reputations on the forum and already done the experiment and gave it a thumbs up, then I’d be comfortable following their footsteps on the trail they blazed.
I think it’s a legitimate area for some motivated person or persons to explore though. I mean, AFAIK, in terms of High Flow nozzles, Bambulab currently only offers the 0.4mm HF hotend. What if someone wants a high flow nozzle of a different diameter? Just wait indefinitely for Bambulab to offer one?
Regarding knock-offs, are they really all the same? Unless they are currently all the same, I can at least magine that some might be bad and maybe some that aren’t bad. So, for that reason, it doesn’t seem fair to dismiss the entire category as though they were all one thing. The CNCKitchen video that @user_3905127299 posted above suggests that, at least in the samples Stefan tested using the particular filament he tried (probably non-abrasive), they might even be better than a branded Bondtech CHT nozzle. Admittedly, none of what he tested were specifically H2D, so that alone isn’t enough to answer the question for H2D. More like a proof of concept that it could be possible.
Am I wrong? Maybe I’m overlooking something.
Anyhow, speaking only for myself, and until I hear differently, yes, I suppose you and I are on the same page: I plan to stick with Bambulab nozzles. I only wish Bambulab were already offering the full complement and could keep whatever they do offer in stock.