Brian Treanor describes deconstruction's focus on the imperfection of our judgments as reaching the point of obsession. He acknowledges the imperfection, but thinks we can cope with it in order to move through it.Obsession isn't the word I'd use, although I admit that deconstruction focuses on imperfection. Like, a lot. That focus can be a danger if imperfection overpowers the thoughts to where the deconstructionist reflects on nothing else, but the focus itself is generally a good thing. And it's a good thing that other philosophers focus on other matters. I like deconstruction, but I wouldn't want everyone to be a deconstructionist.
I wouldn't call the imperfection of our judgments the most pressing philosophical matter, but I've no problem with some philosophers making it the focus on their philosophies. I consider such a focus to be their unique vocation. Or maybe I just like the way they smell.