I dont like the "riders has always done that" or "things that happen" attitude.McEwen making some good points:
'They need to start listening to riders' says former sprinter who designed a safety barrier but never received a response from the UCIwww.cyclingnews.com
That you could improve safety is of course a discussion to be had, always, and UCI will surely look over that. Because they sure are no angels with some thing they do/dont do.
I dont think they could be blamed for what Groenewegen did though. That it happens often and that riders "do that", but not usually with that outcome, is like playing with fire. You will get burned sooner rather than later. I think there is a discussion to be had about that also. There is too many grey areas on what is "okay" when racing and what is not. Some crashes you cant avoid, this obviously one that could have been.
Organisers of course have a part to play when they create routes and finishes, but riders ultimately determine the speed and risks they are willing to take. And what risks you are willing to take should not involve being a danger to other riders. That is an offense and maybe the most severe you could make. You dont wanna be the one making it and seriously injuring someone. Hopefully a lot of riders will also think about this in the future and that this incident will be close to be mind, something to learn from.
There both need to be a change in the attitude from riders and how you race, and what measures in regard to safety measures that could be made by organisers.