You'd never get accurate data for comparison. Skier aptitude, aggressiveness, level of consistency at different lines lengths in varying conditions, and personal drive to reach one or more extra buoys are not quantifiable and as such, the injury data is going to be a crapshoot.
This sport isn't like someone trying their first backflip on a mountain bike on a homemade ramp. There is rarely a single factor in my experience that caused a bad fall. It usually starts when you're a little behind which pretty much happens 99% of passes for me, then you pull a little harder and/or longer to catch up, then you make a little harder turn and maybe get slightly out of control, now you're in a bad pulling position through the wakes and even faster and more out of control into the next buoy but you stick with it....sometimes you catch back up and make the pass, sometimes you just don't make the next buoy, sometimes you realize the gig is up and you stop there, and then sometimes you blow the tail or stuff the tip and get injured.
It takes a lot to write all of that but I'm guessing we've all had tons of passes like this where these decisions are made in a split second. So in that example, is it really the bindings fault you got injured or should you maybe have exercised more caution? IMO a binding is the absolute last line of defense so if you're not setting it up right or think it's going to protect you every time, your chances of injury are going to be a lot higher.