This sounds like a classic case of an arrogant biker speeding-up to force the SUV to stop.  This is no different than an inconsiderate driver speeding-up to beat a yellow/red light, then getting T-boned.
The SUV was signaling the right turn, the biker should have seen the signal, yet he for pedaled “furiously" and ran into the rear corner of the SUV.   It sure sounds like Brewer could have avoided his injuries, by not speeding-up and running into the back-end of vehicle.

This is also why the city's so called "Vision Zero" resolution should be renamed to "Zero Vision", until it specially states that bicycle safety starts with rider's defensive, considerate, and safe riding attitude.  Sure, its great to be "right", but not "dead right".

BTW - I have often seen a pack of bikers (clad in spandex) riding alone the Amazon Creek bicycle/PEDESTRIAN pathway, as though it was a race-track, with the head character arrogantly hollering, "Look out, passing in the right (or left)!"