There are still things about ZRS that do not make a lot of sense. For it to be intuitive a few things have to happen.
Points movements should make sense based on the ZRS of the people you beat or lost to: If you beat expectations and thus beat people who have a higher ZRS than you, in general your ZRS should go up. I am aware that ZRS is not specifically elo, but it should be able to know the skill of those you beat, and those who beat you, and adjust your ZRS accordingly.
Field Size: Today your score can vary more widely if you race in smaller races, and beat fewer people - you can gain a lot of points winning in a small field even if the people you beat have a lower ZRS than you have. You can lose a lot of points even if the people you lost to had higher ZRS to begin with. This intuitively does not make sense.
Mass start races: ZRS should be able to work with mass start races. Today if you join a mass start race and are in the lower half of the field your score will go down even if you’ve had a great performance and beat many above your ZRS. Someone who had a very low ZRS in a mass start race is expected to be lower half in that race. Someone with a very high ZRS is expected to be upper half in one of these races.
Displaying ZRS changes: What you see in terms of movement (+10 etc.) after a race should be the movement due to position in that race, not the movement since last time you had a race, for some people that will be months. This will make the results more understandable to people.