I am not an advocate of re-writing the rule. I am an advocate of tweaking it (clarifying it).
For example: If a dropping unit can adjust its landing to avoid being eliminated to adverse landing conditions (water or terrain being the only onesmentioned), can it do so to avoid landing off-board or near an enemy model? The rules specifically state that a model can move to the nearest open ground, as long as it is whitin 3" of its deviation-rolled LZ.
To me, there is little difference between landing off board or landing near an enemy model, and landing in water and/or terrain tallr than 1". The model simply moves up to 3" to the nearest open ground, sacrifices any remaining actions, and is marked Prone.
To make things simple, I think that it should be clarified as to what, exactly, "terrain taller than1"" is. Is it trees, spires, buildings, etc., even if said buildings have flat rooves?
As I see it, there is room for interpretation, even if it is not, particularly, my interpretation. I am open to hear opposing and agreeing viewpoints.