Have you done any research? Any figures or statistics you can share? I'm questioning why safe standing is so much safer than the current system of simply standing in front of a seat. The onus should be on someone, anyone, to explain why the new system is better.
Like I said, I persistently stand at pretty much every game I atend. The only times I've seen people falling over and potentially injuring themselves is when a goal is scored, or during the pre-match/post-match rush, but that will continue to happen in every other area of the ground where there is no rail seating.
Rail seating only makes sense if we adopt a militant approach to standing in all other areas of the ground (i.e you're not even allowed to stand up after a goal), because this is the only way we can completely eradicate the potential for injury during those big moments in the game when most people are on their feet anyway.