I see what you're getting at, it is a lot of information in a small space; could be neater perhaps. The kind of fundamental difference between evasion techniques and other techniques is that they either block against a damage type or don't; there's nothing incremental about it. The reason that I don't list every form of say, Knife on the melee page is because it is all doing melee damage, just in different amounts. I try to only put separate lines if different forms block different types of damage.
Current chart is useful you were, say, looking for a chain 3 technique that blocks Melee and Etheric damage. Without listing the forms separately, you wouldn't see Parry or Shield Block could work under some conditions.
Point number 2 is not a bad idea. The chart is in MRFES order, which I use standardly across the the wiki. Probably just as easy if it just listed (M,R,F) etc.
EDIT: had an idea that I think addresses the last two points at least (see current page). Still no separation of explicit "Evasion" techniques vs other techniques that otherwise evade, but it's better, I think.