Why do you want to eliminate the break in the wrist? Your wrists will always be subject to this depending on what you are doing on the bike. If you set the flare and tilt of the bar so that your wrist is neutral when you are cruising in a fast Madeline, then your wrists will break to accommodate a deeper position.
If it's about trying to align the wrist when going full gas, then when maximal force is applied to the bars, it is usually in tension to counteract the downstroke. The wrist will naturally straighten here.
A wrist that is broken like that is also a good sign that the rider is relaxed and doeasnt have a death grip on the bars.
Unless there is an ergonomic issue to solve, I don't think there is anything to gain by going with a pronounced flare. I see it as a comfort issue more than gaining anything in performance necause wrist angles change a lot during an effort, and all it would be doing is justifying that range in or out.
Kind of like locating cleats to justify the float for a toes in or toes out rider. Your hands and wrists provide a Huge amount of float. If you're not banging against either limit, then moving those limits wont help you.