Also, pros crash differently than your typical bike commuter or recreational cyclist. For one, there's a large difference in speed (45+ kph for pros, half of that or less for your typical commuter - somewhat negated by the e-bike boom). Next, pros in televised races don't have to deal with oncoming traffic, so head-on collisions are a non-factor. And lastly, pros know how to crash (tuck in, roll over, dissipate energy over a distance), while non-pros tend to tense up in a crash situation.
There's probably other ways in which pros crash differently, making them a less than ideal sample of the overall cycling population.
True, but it'd at least help to verify what sort of helmet would best protect pros and semi-pros. I'm sure there are plenty of keen amateur cyclists who often ride in similar conditions.
And, on the other hand, cyclists who are casual enough to crash very differently to the pros probably wouldn't be looking up in-depth analyses of bike crashes when choosing a helmet either. They'll just buy the second cheapest one.
There's probably other ways in which pros crash differently, making them a less than ideal sample of the overall cycling population.