Completely agree.
I dunno when it happened because for the longest time I loved the crafting system here.
But now its just a huge PITA. I never thought anything could make me miss the randomness of XI's crafting system, but compared to the current state of crafting here where it's just even more random, and it takes 10 times longer to finish the attempt - I'm beginning to feel the ever unpopular "I wish this was more like FFXI" stance for crafting. :P
In fact it made me start crafting more in XI lately. But here? I don't even bother anymore. A shame because I love the animations and the whole system was fun before the complete randomness of success at any rank and overzealous chaotic elements started creeping up.
I mostly only skill crafts through leves now, much to the dismay of my retainers who are still holding onto piles of crafting mats, waiting for me to like the system again. So, its especially in the case of locals for me when the 100%/zero durability nets you less sp that I agree with the OP. Even if the item is considered too damaged to keep (0 durability) it was in fact completed (100%). You should get 100% sp off of it.