This debate is interesting to me as a show jumper! I train and ride with eventers, and I feel like this is one of the (many) places where we have different needs. I have to know when I have rails because if I’m in a power and speed and I had a rail in the power I don’t get to continue once I get through with that phase. If I am in a jump off and I have a rail but others are having rails I might go a bit slower/be more careful to be sure I don’t get another one, and maybe I’ll still be in the ribbons. Or, if it was a dumb, unlucky rail and the round is otherwise going well, I might speed up so I can (hopefully), be the fastest of the 4-faulters. If it’s a speed class and it’s really competitive and I get a rail I’ll probably dial down the speed because I’m out of the ribbons anyway, unless my horse would benefit from continuing on with a very fast school over the rest of the course. And so on.
I guess it’s not as important for you guys to have that exact damn! rail fell!! as it happens, unless things are piling up into a big disaster and you need to try to salvage it.