we had different reasons to chose this distribution. one was, that there we had to split at position 7 and the 8th was way faster than the 9th and would have an advantage to the best cars on server 1 who have a massive battle for Position 1.
the other reason was, that we were asked every year, why we didn't distribute this way and kind of flamed about our old version.
There is no perfect distribution for such a race. I would prefer, if everyone could drive on one server. But there is a limit in LFS we can't break.